• Head to the Oregon Zoo for a day of Earth Day events and workshops, 9:30 a.m. to 3 p.m., 4001 S.W. Canyon Road. www.oregonzoo.org
• Travel west to Oswald West State Park south of Cannon Beach to help Surfrider PDX clean up the beach for Earth Day, beginning at 10 a.m. www.surfrider.org/chapters/entry/portland-oregon
• Join the Meals on Wheels People for Stride for Seniors Charity Walk, 10 a.m. to 1 p.m., Portland International Raceway, 1940 N. Victory Blvd. www.strideforseniors.org
• Head to the Webfooters Post Card Club for the 38th annual Antique Paper Show and Sale, 10 a.m. to 4 p.m., Portland Meadows Turf Club, 1001 N. Schmeer Road. www.thewebfooters.com/
• Find something tasty at the Northwest Food Show, 10 a.m. to 5 p.m., Portland Expo Center, 2060 N. Marine Drive. www.nwfoodshow.com/
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