Weekend calendar

Animal events

Happy, Healthy Dog Day 2

SAT Demonstration by Flying Disc Dogs, agility fun runs for people and dogs, off-leash play time, nail trimming, health-care presentation, raffle prizes, info on dog training and health questions, 11 a.m.-4 p.m. Saturday, Canine Comfort Corner, 2029 46th Ave. S.E., Bothell; free (425-890-6883 or www.caninecomfortcorner.com).

Benefits

Doublexposure 2009 Annual Photography Auction

FRI Dinner, dinner with live and silent auctions to benefit Youth in Focus, an organization that teaches photography to help urban youths make positive changes in their lives, 5:30 p.m. Friday, South Lake Union Naval Reserve Building, 860 Terry Ave. N., Seattle; $85 (206-407-2121 or youthinfocus.org).

The Clay Project for Seward Park Clay Studio

SAT Food, beverages and silent auction by a collaboration of artists raising funds for Seward Park Clay Studio, 6 p.m. Saturday, University Club at University of Washington, 4020 E. Stevens Way, Seattle; $20 (206-722-6342 or www.sewardparkart.org).

The Sacred Cat Ball

SAT Dinner and auction to benefit Whisker City to rescue, rehabilitate and find homes for abused, neglected and abandoned cats and kittens, 5 p.m. Saturday, Lynnwood Convention Center, 3819 196th St. S.W., Lynnwood; $75 (206-542-0947 or www.whiskercityauction.com).

Put a Little Art in Your Soul

SAT Arts Downtown outdoor art gallery soul-food dinner, music and auction promoting diverse artistic culture, in partnership with the Fish Food Bank, 6 p.m. Saturday, Pioneer Park Pavilion, 330 S. Meridian St., Puyallup; $20-$25, nonperishable food-bank donations requested (253-840-6015 or www.artsdowntown.org).

Antiques Safari

SAT Verbal appraisal of collectibles and antiques, $5 per item (5-item maximum), proceeds benefit Burlington-Edison Education and Alumni Foundation's Scholarship Fund, 10 a.m.-4 p.m. Saturday, Cascade Mall, 201 Cascade Mall Drive, Burlington (360-757-0835).

Pajama Bowl for Foster Kids

SUN Teams of 5 bowl in their PJs to raise money for Pacific Northwest foster kids in need, 11 a.m. April 19, Acme Bowling, Tukwila and TechCity Bowl, Kirkland; $250/team of five, registration deadline Friday (pajamabowl.com).

Childhaven Centennial Luncheon

PLAN AHEAD Childhaven celebrates 100 years of efforts to break the cycle of child abuse and neglect with keynote speaker Meg Tilly and retired Seattle Seahawk Mack Strong and his wife, Zoe, receiving the Mark Matthews Service to Children Award; 11:30 a.m. April 23, Washington State Convention & Trade Center, 800 Convention Place, Seattle; $150 minimum donation requested (206-957-4807 or www.childhaven.org).

Biking

CycleFest

SAT Local cycling clubs, free bike inspections, cycling-product reps, STP clinic, helmet fittings, 11 a.m.-2 p.m. Saturday, REI, 7500 166th Ave. N.E., Redmond Town Center, Redmond; free (425-882-1158 or www.rei.com).

Ready to Roll Bike Safety Open House

SAT Snohomish County Fire District 1 bike-safety rodeo for kids, $7 custom-fitted bike helmets, fire-engine tours, short family ride led by firefighters on the Interurban Trail at 11:30 a.m., weather permitting; children must be accompanied by an adult, 10 a.m.-noon Saturday, Mariner Fire Station, 12310 Meridian Ave., Everett; free (425-551-1243 or www.firedistrict1.org).

Daffodil Classic

SUN Tacoma Wheelmen's Bicycle Club ride through the Orting valley on 1-30 mile family-friendly course or 40-, 60- or 100-mile loops, registration open 7 a.m.-noon Sunday; pancake breakfast available 6:30-10:30 a.m. $7; Orting Middle School, 111 Whitehawk Blvd. N.W., Orting; $8-$20/person or $37-$45/family (www.twbc.org).

Birding

Woodpeckers of Puget Sound

THU Seattle Audubon membership meeting with program on five local species of woodpeckers, all welcome, 6:30 p.m. today, REI, 222 Yale Ave. N., Seattle (www.seattleaudubon.org).

Heron Habitat Helpers

SAT See the largest heron rookery in Seattle and help with weed removal and seedling planting to enhance their habitat; gloves, tools and snacks provided, 10 a.m. Saturday, Heron Habitat Helpers meeting place, 4400 36th Ave. W., Seattle; (206-282-3429).

Swifts Night Out

SAT Monroe Swift Night Out Committee, Seattle and Pilchuck Audubon Societies host event to welcome migrating birds that flock to the school chimney each year, with guided bird walk, 2 p.m., and showing of the movie "On the Wing" detailing the lives of swifts, 4 p.m. Saturday; training for volunteer counters/docents after the movie, Frank Wagner Elementary School, 639 W. Main St., Monroe; free (425-252-0926 or www.pilchuckaudubon.org).

Dance

Green Lake Folk Dancers workshops and dance

FRI, SAT Bulgarian dance workshops, 7:30 p.m. Friday, VFW Hall, 7220 Woodlawn Ave. N.E., Seattle; dance workshops, 11 a.m., 1:30 and 3:30 p.m. Saturday, dance party with live music by Balkan Cabaret, 8:30 p.m. Saturday, Cedar Valley Grange, 20526 52nd Ave. W., Lynnwood; $5-$65 (425-883-0332 or www.ratchenitza.com).

Celebrate Ballard Spring Dance and Social

SAT Learn about Ballard history and dance to fiddle tunes and swing; wine-and-beer bar; for ages 21 and older; proceeds benefit Ballard Historical Society and Sunset Hill Community Club, 8 p.m. Saturday, Sunset Hill Community Hall, 3003 N.W. 66th St., Seattle; $7 at the door, cash only (206-660-8463).Let's Dance

SAT Dance lesson, 7:30-8:30 p.m.; dance Casey MacGill and the Blue 4 Trio, 8:30 p.m.-midnight Saturday, Leif Erikson Lodge, 2245 N.W. 57th St., Seattle; $10-$15 (206-781-1238 or www.nwdance.net).

Festivals/Expos

Spring Fair in Puyallup

THU-SUN Farm animals, carnival rides, garden show, entertainment, KidZone activities, Fiesta Mexicana with food, entertainment and dancing-horses performances, vendors, fair food, 2-10 p.m. today, 10 a.m.-10 p.m. Friday-Saturday, 10 a.m.-8 p.m. Sunday, Puyallup Fair and Events Center, 110 Ninth Ave. S.W., Puyallup; $7-$8, all kids up to age 18 admitted free today only, food-bank donations requested; Military Appreciation Day, free admission active, reserve, retired military and their dependents with valid ID, Friday only (253-841-5045 or www.thefair.com).

Renton Women's Show

FRI-SAT Vendors, fashion shows, speakers, Calendar Firefighters, pampering, raffles, networking; proceeds to women's scholarship fund, 10 a.m.-5 p.m. Friday-Saturday, Spirit of Washington Event Center, 233 Burnett Ave. S., Renton; $10 (425-277-2434 or www.rentonbpw.org).

Seattle Cherry Blossom and Japanese Cultural Festival

FRI-SUN Japanese food, tea-ceremony demonstrations, entertainment and art, 10 a.m.-6 p.m. Friday-Sunday, Seattle Center House and Fisher Pavilion, Seattle Center, Seattle (206-684-7200 or www.seattlecenter.com).

Welcome the Whales

SAT Shore-based whale watching, educational displays, music and celebration, 10 a.m.-5 p.m., parade, 1:30 p.m. Saturday, Langley, Whidbey Island (360-678-3451 or www.visitlangley.com).

Skagit Valley Tulip Festival

ONGOING Fields in bloom at dates according to Mother Nature; art shows, winery, museum and farm events, through April 30, information online or in brochure available from Skagit Valley Tulip Festival Office, 100 E. Montgomery St., Mount Vernon (360-428-5959 or www.tulipfestival.org);

• Mount Vernon Street Fair, arts-and-crafts vendors, food, music on two stages, children's activities, 10 a.m.-6 p.m. Saturday, 10 a.m.-5 p.m. Sunday, downtown Mount Vernon (360-336-9277 or www.downtownmountvernon.com).

• Tulip Town, garden and gift shops, art gallery, cafe, kite shows, tulip-field walk and trolley ride with elevated view for photos, 9 a.m.-6 p.m. daily, later when weather permits, Tulip Town, 5002 Bradshaw Road, Mount Vernon; admission $5/adults, $5/military personnel with ID, ages 16 and younger free, trolley rides $1-$2; no pets (360-424-8152 or www.tuliptown.com).

• Roozengaarde Washington Bulb Company, display garden with 88 varieties of tulips plus daffodils, hyacinth, iris and other spring blooms, gift shop, picnic area, food available, 9 a.m.-6 p.m. daily, 15867 Beaver Marsh Road, Mount Vernon; admission $4, $3/military with ID, ages 10 and younger free; no pets (360-424-8531 or www.tulips.com).

Food events

Renton History Museum Speaker Program

THU Speakers food-related issues, the theme of the museum's "Key Ingredients: America by Food" exhibit; documentary film "3 Feet Under: Digging Deep for the Geoduck Clam," 4:30 p.m. today, Carco Theatre, 1717 Maple Valley Highway, Renton; $10/adults, $5/students and ages 65 and older (425-255-2330).

Norwegian Pancake Breakfast

SAT Norwegian pancakes with lingonberries, ham, scrambled eggs, beverages, entertainment, kids' craft activities, 8:30 a.m.-noon Saturday, Leif Erikson Lodge, 2245 N.W. 57th St., Seattle; $3.50-$7 (206-783-1274).

White River Buddhist Temple Spring Fundraiser

SUN Sukiyaki or chicken teriyaki dinner, dine in or take out, bake sale, 11 a.m.-3 p.m. Sunday, White River Buddhist Temple, 3625 Auburn Way N., Auburn; $10 (253-833-1442 or www.whiteriverbuddhisttmpl.org).

Baconopolis

PLAN AHEAD Taste 5 types of bacon and 10 bacon-enhanced bites created by Tom Douglas Restaurants and one beer or glass of wine; cash bar available, 6 p.m. April 24, Palace Ballroom, 2100 Fifth Ave., Seattle; $20 by reservation (206-448-2001).

Gardening

Container veggie gardening

THU Learn how to grow vegetables in containers, for apartment and condo dwellers, 7 p.m. today, Bradner Gardens Park, 29th Avenue South and South Grand Street, Seattle; $25-$35 (206-633-0451 or www.seattletilth.org).

NW Horticultural Society Lecture

THU "Introduction to Northwest Weather" lecture by Cliff Mass, professor of atmospheric sciences at the University of Washington, with weather information for Northwest gardeners, 6:45 p.m. today, Center for Urban Horticulture, 3501 N.E. 41st St., Seattle; $10 (206-362-0933 or www.dunngardens.org).

Container gardening

SAT Container gardening for all seasons, 10 a.m. Saturday, Swansons Nursery, 9701 15th Ave. N.W., Seattle; free (206-782-2543 or www.swansonsnursery.com).

Natural pest, weed and disease control

SAT Techniques for managing your garden naturally without toxic chemicals, 1 p.m. Saturday, Bellevue Nursery, Bellevue Way Southeast and Southeast 10th Street, Bellevue; free (425-454-5531 or www.bellevuenursery.com).

Plants for a hummingbird haven and butterfly bastion

SAT Best plants to attract hummingbirds and butterflies and how to care for them, 11 a.m. Saturday, Furney's Nursery, 21515 International Blvd., Des Moines; free (206-878-8761 or www.furneysnursery.com).

Tour the Kruckeberg Botanic Garden

SAT Guided tour with highlights of woodland garden with more than 2,000 plant species, 1 p.m. Saturday, Kruckeberg Botanic Garden, 20312 15th Ave. N.W., Shoreline; free, no registration required (206-546-1281 or www.kruckeberg.org).

Design a hanging basket

SAT, SUN Design and plant a blooming hanging basket, 10 a.m. Saturday, noon Sunday, Emery's Garden, 2829 164th St. S.W., Lynnwood; free (425-743-4555 or www.emerysgarden.com).

Northwest Orchid Society show and sale

SAT-SUN Displays by Northwest Orchid Society, growers, Woodland Park Zoo and University of Washington Botanical Greenhouse, wide variety of orchids for sale from seven orchid growers, 9 a.m.-6 p.m. Saturday, 10 a.m.-4 p.m. Sunday, Center for Urban Horticulture, 3501 N.E. 41st St., Seattle; $5 (425-257-0583 or www.nwos.org).

Dahlia tuber sale

SAT-SUN Hundreds of tubers, advice by Seattle Dahlia Society, 10 a.m.-6 p.m. Saturday, 11 a.m.-5 p.m. Sunday, Country Village, 23732 Bothell-Everett Highway, Bothell (206-954-3336).

NPA spring plant sale

SUN Northwest Perennial Alliance sale of plants from 20 specialty nurseries and members' gardens, plus garden art, 10 a.m.-3 p.m. Sunday, North Seattle Community College, 9600 College Way N., Seattle (www.northwestperennialalliance.org).

Colorful containers

SUN How to assemble, plant and maintain containers of all shapes and sizes, 1 p.m. Sunday, Bainbridge Gardens, 9415 Miller Road N.E., Bainbridge; free, preregistration required (206-842-5888).

Hiking/walks

Spring Sprint

SAT Volkssport 10K (6.2 miles) or 5K walk on nature trail with view of Mount Rainier, suitable for strollers and wheelchairs, start anytime 9 a.m.-1 p.m., finish by 4 p.m. Saturday, Federal Way Community Center, 876 S. 333rd St., Federal Way (www.ava.org/clubs/esva).

Issaquah Alps Trails Club

SAT Rattlesnake Mountain 5-mile, moderate-difficulty hike with 900-foot elevation gain, geology and history information; day pack, food, water, hiking shoes/boots required, 9:30 a.m. Saturday, Issaquah Alps Trail Club clubhouse, First and Bush Streets, Issaquah (www.issaquahalps.org).

Mount St. Helens Institute hikes

SUN Hikes open to all ages, range from 4-10 miles, easy to difficult, minors must be accompanied by adults, Sunday, Gifford Pinchot National Forest, 10600 N.E. 51st Circle, Vancouver, Wash.; suggested donation $5/person, reservations required, details provided with registration (360-449-7883 or www.mshinstitute.org).

Hobbies

Planetarium show and star party "8 ½ Planets"

SAT Take a tour of our solar system, stopping off at Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and find out what's up with Pluto, now demoted to dwarf planet; image-enhanced planetarium presentation on the night's sky; if the sky is clear, astronomers will be on hand with telescopes; 8 p.m. Saturday, Battle Point Park, 11299 Arrow Point Drive N.E., Bainbridge Island; free (206-842-9152 or www.bpastro.org/).

Museum events

Science with a twist

THU Learn about the beginnings and many applications of GPS and how it is shaping the world today, explore our newest exhibit with DJ, cocktails and how you can participate in geocaching, see the adventure story "Shackleton" in IMAX, 6 p.m. today, Pacific Science Center, 200 Second Ave. N., Seattle; $12-$15 (206-443-3656 or pacificsciencecenter.org/twist).

Earth Revealed: A View of Our Planet from Space

THU, SAT Explore Earth by seeing it from satellites and spacecraft, meet scientists and participate in hands-on activities, 10 a.m. today and Saturday, Pacific Science Center, 200 Second Ave. N., Seattle; $6-$11, activities included with admission (206-443-3656 or pacificsciencecenter.org).

Henry Gallery open house

FRI Celebrate the new exhibition "Ann Lislegaard 2062," announcement of the Brink award, beer and wine bar, music, 7:30 p.m. Friday, Henry Art Gallery, 4100 15th Ave. N.E., Seattle; $8-$10 (www.henryart.org).

Family day at EMP/SFM

SAT Family day, 10 a.m.-5 p.m., performance by local band The Raggedy Anns, 12:30 and 1:30 p.m. Saturday, EMP/SFM, 325 Fifth Ave. N., Seattle; $12-$15 (206-770-2702 or www.empsfm.org).

"Will the Real Lenci Please Stand Up?"

SAT Interactive program, presentation and book signing by author Nancy Lazenby to coincide with our latest exhibit "Two Neighbor Ladies Who Made Cloth Dolls, Kathe Kruse and Scavini (Lenci)"; bring your Lenci or Lenci look-a-likes, 1 p.m. Saturday, Rosalie Whyel Museum of Doll Art, 1116 108th Ave. N.E., Bellevue; $3-$5 (425-455-1116 or www.dollart.com).

100 years of Alaska-Yukon-Pacific Exposition

SAT Grand opening 1 p.m. Saturday of exhibit of photos and memorabilia on the 1909 fair and its far-reaching impact on King County communities, 10 a.m.-4 p.m. Saturday and Tuesdays-Saturdays through Oct. 7, Shoreline Historical Museum, 749 N. 175th St., Shoreline; free, donations requested (206-542-7111 or www.shorelinehistoricalmuseum.org).

Museum of Flight

SAT-SUN American Fighter Aces World War II fighter pilot panel, "Mustang Aces," 2-3:30 p.m. Saturday; tip-to-tail tour of the Nakajima Ki-43-LLA Hayabusa, the most important World War II aircraft of the Japanese Army Air Force, 11 a.m. and 2 p.m. Sunday, Museum of Flight, 9404 E. Marginal Way S., Seattle; $7.50-$14 (206-764-5720 or www.museumofflight.org).

World Folk Arts Festival

SAT-SUN Demonstrations and hands-on activities with 20 artists, including folk art from Latvia, Ukraine, Guatemala, Mexico, Norway, Vietnam, 10 a.m.-5 p.m. Saturday, noon-5 p.m. Sunday, with world performances on the hour beginning at 10:30 a.m. Saturday and 12:30 p.m. Sunday, Washington State History Museum, 1911 Pacific Ave., Tacoma; $6-$8 (253-272-3500 or www.washingtonhistory.org).

Paddle sports

Open house

SAT Boathouse tours, rowing-machine instruction and information on upcoming classes for adults and youth ages 13-18, drop in 11 a.m.-2 p.m., Sammamish Rowing Association, 5022 W. Lake Sammamish Parkway, Redmond (425-653-2583 or www.srarowing.com).

Sound Rowers Open Water Rowing and Paddling Club

SAT Race open to all human-powered craft, circumnavigating Jetty Island, includes post-race lunch, 11 a.m. Saturday, Marine Park, Everett, West Marine View Drive, Everett; $8-$18/person (206-706-2979 or www.soundrowers.org).

Park events

Teen Nature Photography Show Opening and Reception

THU Teens from Spring Break Nature Photography Workshop display their best photographs from urban natural areas of Seattle, 5:30 p.m. today, Seward Park Environmental and Audubon Center, 5902 Lake Washington Blvd. S., Seattle; free (206-652-2444 or sewardpark.audubon.org).

Tree walk

SAT Tour of park trees and book signing by tree expert Arthur Lee Jacobson, 10 a.m. Saturday, Volunteer Park Conservatory, 1400 E. Galer St., Seattle; preregister, space limited (206-322-4112).

Seward Park Guided Nature and Eagle Walk

SAT Walk to learn about the flora and resident nesting bald eagles in the park, with a short hike to the nest, 2 p.m. Saturday, Seward Park Environmental and Audubon Center, 5902 Lake Washington Blvd. S., Seattle; $2-$4 (206-652-2444 or sewardpark.audubon.org).

Nisqually Wildlife Refuge Farewell Trail Walk

SAT Walk the 5.5 mile Brown Farm Dike Trail with rest stations along the way; small shuttle to ride a portion of the trail on a space available basis; in May the trail will be permanently removed and the area will return to salt marsh and tidal estuary, walk anytime during park hours, sunrise to sunset Saturday, Nisqually National Wildlife Refuge, 100 Brown Farm Road, Olympia; $3/family refuge entry fee (360-753-9467).

Arboretum walks

SUN Guided walks to learn about seasonal plants, native plants and local ecology, 1 p.m. Sunday, Graham Visitors Center, 2300 Arboretum Drive E., Washington Park Arboretum, Seattle; free (206-543-8800).

Performances

Brave New Words Poetry Festival

SAT Diverse celebration of poetry, 10 a.m.-8 p.m. Saturday, Greenbank Farm, 765 E. Wonn Road, Greenbank, Whidbey Island; $5-$15 (www.bravenewwords.org).

Golden Ages of Hollywood

SAT Classic movie matinees, free popcorn, "It Happened One Night," 1 p.m. Saturday, Mountlake Terrace Library, 23300 58th Ave. W., Mountlake Terrace; free (425-776-8722).

Washington Old Time Fiddlers Fiddle & Variety Show

SAT Musical show featuring some of Washington's finest fiddlers, including youth fiddlers and vocalists performing old-time music, 1:30 p.m. Saturday, Des Moines Masonic Lodge, 2208 S. 223rd St., Des Moines; $5-$6 (425-228-5846).

GlobalFest

SAT Celebration of cultures from around the world with exhibits, food and music and dance performances, including Yamato Taiko drumming and traditional Vietnamese, Japanese traditional, Brazilian, Turkish and Cambodian dancing, 5 p.m. Saturday, Highline Community College, 2400 S. 240th St., Des Moines; $5-$10 (206-878-3710 or www.highline.edu/international/).

Sales/Shopping

Friends of SPL Spring Book Sale

FRI-SUN Friends of The Seattle Public Library sale of more than 250,000 books, CDs, DVDs, art prints and posters at bargain prices, most books $1, most items half-price Sunday; Friends member-preview sale and silent auction, 6:30-9:30 p.m. Friday, membership $15/advance, $30/at the door; sale open to all, 9 a.m.-5 p.m. Saturday, 11 a.m.-4 p.m. Sunday, Magnuson Park, 7400 Sand Point Way N.E., Seattle (206-523-4053 or www.friendsofspl.org).

Made in Montlake

SAT Art by 19 local artists, music, treats, 10 a.m.-6 p.m. Saturday, Montlake Community Center, 1618 E. Calhoun St., Seattle; free (www.madeinmontlake.com).

Rummage sale

SAT Sale tables, 10 a.m.-4 p.m. Saturday, South Park Community Center, 8319 Eighth Ave. S., Seattle; seller tables $10 (206-684-7451).

Art Bounce

SAT-SUN Visual-arts sale, proceeds benefit Seattle Musical Theatre, 10 a.m.-6 p.m. Saturday, 10 a.m.-4 p.m. Sunday, Magnuson Park, 7400 Sand Point Way N.E., Seattle (206-363-2809 or seattlemusicaltheatre.org/ArtBounce/).

Fundraiser for Cultural Exploration of Greater China Foundation

SAT-SUN Community garage sale, all proceeds will support Seattle-area teachers to visit China, Taiwan and Hong Kong to promote mutual understanding & cultural exchange, 9 a.m.-4 p.m. Saturday-Sunday, Cultural Exploration of Greater China Foundation, 14724 S.E. 45th Court, Bellevue (425-746-3880 or culturalexploration.org).

Special interest

Psychology and the Paranormal

FRI Highline Community College Psychology instructors Bob Baugher and Sue Franz explore why people believe in ghosts, unidentified flying objects (UFOs) and extrasensory perception (ESP)., 2:20 p.m. Friday, Highline Community College, 2400 S. 240th St., Des Moines; free (flightline.highline.edu/scienceseminars/).

YMCA Healthy Kids Day

SAT Activities and games for kids, entertainment, health and wellness resources for families, free T-shirt for the first 100 kids at each location, 10 a.m.-2 p.m. Saturday; free (206-382-5003 or www.seattleymca.org);

• 10 a.m.-2 p.m. Saturday, Meredith Mathews East Madison YMCA, 1700 23rd Ave., Seattle;

• 10 a.m.-2 p.m. Saturday, University Family YMCA, 5003 12th Ave. N.E., Seattle;

• 10 a.m.-1 p.m. Saturday, West Seattle and Fauntleroy YMCA, 4515 36th Ave. S.W., Seattle;

• 10 a.m.-2 p.m. Saturday, Bellevue Family YMCA, 14230 Bel-Red Road, Bellevue;

• 10 a.m.-2 p.m. Saturday, Lake Heights YMCA (future location), 13750 Newcastle Golf Course Road, Newcastle;

• 10 a.m.-2 p.m. Saturday, Highline YMCA (future branch location), 3595 S. 188th St., SeaTac;

• 10 a.m.-2 p.m. Saturday, Auburn Valley YMCA, 620 Perimeter Road, Auburn;

• 10 a.m.-2 p.m. Saturday, Dale Turner Family YMCA, 19290 Aurora Ave. N., Shoreline;

• 10 a.m.-1 p.m. Saturday, including 5 K fun run and kids dash at 9 a.m., performance by children's band Recess Monkey, 10:30 a.m., Northshore YMCA, 11811 N.E. 195th St., Bothell.

Families Explore Slavery's Legacy

SUN Film and discussion series, "Yokes and Chains," efforts of early abolitionists, 2 p.m. Sunday, Seattle Central Library, 1000 Fourth Ave., Seattle; (206-386-4636 or www.spl.org).

Open to Question: Activism in Seattle's University District

ONGOING Outdoor exhibit of historic images and graphic presentation highlighting the social and political activism in the University District neighborhood in the 1960s and '70s; open daily through May 30, best viewed during daylight hours, UW Tower, Brooklyn Avenue Northeast and Northeast 45th Street, Seattle; free (opentoquestion.org).

Sports

AMA Supercross

SAT International dirt-bike racing series, pit passes available, practice/qualifying 12:30 p.m., show starts 7 p.m. Saturday, Qwest Field, 800 Occidental Ave. S., Seattle; $10-$47 (206-628-0888 or www.supercrossonline.com).

Swimming

April Pools Day, Seattle

SAT Family activities to learn about water safety and activities, free;

• 10 a.m.-noon Saturday, Ballard Pool, 1471 N.W. 67th St., Seattle (206-684-4094);

• 1:30-2:30 p.m. Saturday, Evans Pool, 7201 E. Green Lake Drive N., Seattle (206-684-4961);

• 9:30-10:30 a.m. Saturday, Meadowbrook Pool, 10517 35th Ave. N.E., Seattle (206-684-4989);

• 3:30-4:30 p.m. Saturday, Queen Anne Pool, 1920 First Ave. W., Seattle (206-386-4282);

• 1:30-2:30 p.m. Saturday, Rainier Beach Pool, 8825 Rainier Ave. S., Seattle (206-386-1944);

• 10:30 a.m.-noon Saturday, Southwest Pool, 2801 S.W. Thistle St., Seattle (206-684-7440).

April Pools Day

SAT Family activities to learn about water safety, free;

• 2-5 p.m. Saturday, Lindberg Pool, 16740 128th Ave. S.E., Renton (425-204-4440);

• Noon-4 p.m. Saturday, Covington Aquatic Center, 18230 S.E. 240th St., Covington (425-413-7665);

• 1-5 p.m. Saturday, Lynnwood Rec Center, 18900 44th Ave. W., Lynnwood (425-670-5732);

• 1-5 p.m. Saturday, Safe N Sound Swimming, 12225 N.E. 160th St., Bothell (425-486-7233);

• Noon-2:30 p.m. Saturday, Si View Pool, 400 S.E. Orchard Drive, North Bend (425-888-1447);

• 1-4 p.m. Saturday, Monroe/Sky Valley Family Branch YMCA, 14033 Frylands Blvd., Monroe (360-805-1879);

April Pools Day, Tacoma

SAT Water-safety activities and open swim for all ages, ages 7 and younger must be accompanied in the water by adult, 1:30 p.m. Saturday, Eastside Pool, 3524 East L St., Tacoma; free (253-591-2042 or www.metroparkstacoma.org).

April Pools Day, Seattle

SUN Family activities to learn about water safety and activities, 3:30-5 p.m., 3:30 p.m. Sunday, Helene Madison Pool, 13401 Meridian Ave. N., Seattle; free (206-684-4979).

April Pools Day, Federal Way

SUN Family activities, 11:30 a.m.-1:30 p.m. Sunday, King County Aquatic Center, 650 S.W. Campus Drive, Federal Way; free (206-296-4444).

Tours

Tulip Tours

FRI-SUN Motorcoach trip with tour of the tulip fields, stops at two bulb farms, free time in La Conner, call for times Friday-Sunday, Victoria Clipper, Pier 69, 2701 Alaskan Way, Seattle; $27-$46, by reservation (206-448-5000 or www.clippervacations.com).

Seattle Architecture Greatest Hits

SAT Tour-guide trainees lead free tours focusing on downtown buildings that shape our skyline; participants asked to complete a brief evaluation of their guides at the end of the tour; 10 or 10:30 a.m. Saturday, Seattle Architecture Foundation, 1333 Fifth Ave., Rainier Square Atrium, Seattle; free, preregistration required, space limited (206-667-9184 or www.seattlearchitecture.org/tours.cfm).

Madrona

SAT Seattle Architecture Foundation walking tour of the story of the neighborhood's urban transformation, 10 a.m. Saturday, Madrona Playfield, 3211 E. Spring St., Seattle; $15-$20 preregister; day of tour if space available (206-667-9184 or www.seattlearchitecture.org).

Modern skyscrapers

SAT Seattle Architecture Foundation tour to see what's new in modern building trends, 10 a.m. Saturday, Federal Courthouse, 700 Stewart St., Seattle; $15-$20 advance purchase recommended, day of event if space available (206-667-9184 or www.seattlearchitecture.org).

Old Redmond Historic Walking Tour

SUN Redmond Historical Society walking tour, 1 p.m. Sunday, Justice White House, 7730 Leary Way, Redmond; $8 preregistration required (425-885-2919).

AYP Centennial Walking Tour

PLAN AHEAD Friends of Seattle's Olmsted Parks lead walking tours of the University of Washington campus, site of the 1909 Alaska-Yukon-Pacific Exposition (AYPE), with short presentation of the history of John Charles Olmsted's design of the exposition grounds, followed by a walking tour of the campus, 10 a.m. April 25, Cunningham Hall, University of Washington, Seattle; free, registration requested (425-885-3173).

Travel events

Travel classes

THU, SAT Europe 101: art and history for travelers, 6-7 p.m. today, Rick Steves Travel Center, 130 Fourth Ave. N., Edmonds; European rail skills, 10 a.m. Saturday; Travel Teach-a-Thon: 6 travel classes, 9 a.m.-4:30 p.m. April 25, Edmonds Theater, 415 Main St., Edmonds; free, preregistration required, space limited (425-771-8303 or www.ricksteves.com).

Gutsy women travelers

SAT Informal gathering of women travelers, 9 a.m. Saturday, Wide World Books & Maps, 4411 Wallingford Ave. N., Seattle (206-634-3453 or on the Web at wideworldtravelstore.com).

Travel seminars

SAT Morocco, 10 a.m., Egypt and Jordan along ancient pathways, 1 p.m. Saturday, The Savvy Traveler, 112 Fifth Ave. S., Edmonds; free, preregister (425-744-6076 or savvytraveleredmonds.com).

Workshops

Drumming 101 (The Basics of the Back Beat & Beyond)

SAT Basic techniques to develop skills to become a performance-level drummer, sponsored by the Washington State Percussive Arts Society, 1 p.m. Saturday, The Drum Exchange, 4501 Interlake Ave. N., Seattle; free (206-545-3564 or drumexchange.com/drumx.htm).

Oral history

SAT How to record and preserve oral-history interview, 9:30 a.m.-4:30 p.m. Saturday, Museum of History & Industry, 2700 24th Ave. E., Seattle; $40-$55, preregister (206-324-1126 or www.brownpapertickets.com).

Disaster preparedness

SAT Basic disaster preparedness and SNAP (Seattle Neighborhoods Actively Prepare) program, 6:30 p.m. Saturday, Rainier Beach Library, 9125 Rainier Ave. S., Seattle; free (206-233-7123 or www.seattle.gov/emergency/programs/snap/).

The 100-Mile Diet: Eating Locally in Western Washington

SAT Learn to be a thinking eater and how to be a "locavore," 10 a.m. Saturday, Bastyr University, 14500 Juanita Drive N.E., Kenmore; $65 (425-602-3152 or www.bastyr.edu/continuinged).

Discovering A-Y-P-E Community Research Project

SAT How to research topics related to 1909 Alaska-Yukon-Pacific Exposition and share information with the community; 1-3 p.m. Saturday, Bellevue Regional Library, 1111 110th Ave. N.E., Bellevue; free, preregister (206-324-1126, ext. 30 or www.ayp100.org)