10 a.m. to 2 p.m. April 20, Salmon Creek Regional Park, 1112 N.E. 117th St. Clark Public Utilities' StreamTeam hosts 14th-annual EcoFair featuring fun for kids, nature talks, live entertainment and booths. Tree planting and weed pull from 8:30 a.m. to 12:30 p.m. Free. Volunteers must pre-register. * Ashley King, 360-992-8585, or StreamTeam@clarkpud.com.