Spring Fling, 2-8:30 p.m. Saturday, Bourne Community Center, 239 Main St., Buzzards Bay. Sponsored by Appalachian Mountain Club (AMC) of Southeastern Massachusetts. Features workshops and displays of outdoor clothing and gear. $15, $8 children. 508-759-7362.

Spring Planting Festival, Sunday, Hyannis Country Garden, 380 W. Main St. Free seminars include ''Garden Railroads,” 12:30 p.m.; ''Perennial Garden Maintenance,” 1:30 p.m.; and ''The Organic Gardening Problem Solver,” 2:30 p.m. Rain or shine. 508-775-8703.

Earth Day Events

Beach cleanup, 10 a.m.-1 p.m. Friday, Lieutenant Island, Wellfleet, put on by Massachusetts Audubon Society. 508-349-2615 ext. 101.

Earth Day celebration, noon-3 p.m. Friday, Centerville Library 585 Main St. Puppet show, crafts. All ages. 508-790-6220.

Earth Day celebration, 10 a.m.-3 p.m. Saturday, Heritage Museums and Gardens, 67 Grove St., Sandwich. Trail tours, crafts, races and relays, puppet show, scavenger hunt. Free with museum admission. 508-888-3300, ext. 102.

Earth Day clean up and paddle, 1-4 p.m. Saturday, Hemenway Road Landing, off Route 6, Eastham. Shoreline cleanup and free Earth Day paddle through marsh channels with educator/kayaker Dick Hilmer. Bring own kayak and equipment; life jackets required. Kayak rentals available through Osprey Sea Kayak Adventures (508-240-1211). Preregister: 508-240-1211.

Earth Day with canal cleanup and barbecue, begins 10 a.m. Sunday, National Marine Life Center, 120 Main St., Buzzards Bay. 508-743-9888.

Earth Day workshop, 11:45 a.m.-2 p.m. Sunday, Unity Church of the Light, 147 Walton Ave., Hyannis. Explores everyday earth-friendly choices for people, animals and the environment; led by Melissa Feldman, creator of Circle of Compassion. Preregister: 508-775-8400. FREE!

''America's Energy Challenges, Energy Solutions,” by Randy Udall, director of Community Office for Resource Efficiency, 7 p.m. Thursday, Lecture Hall A, Cape Cod Community College, Route 132, West Barnstable. Earth day celebration presented by The Cape and Islands Renewable Energy Collaborative (CIREC) and Students for Sustainability. Refreshments follow. 508-362-9599.

FUNDRAISERS

Personalized Luminaria Day, 1-4 p.m. Saturday, Chatham Village Market, Route 28 and Crowell Road. Part of Relay For Life event to benefit American Cancer Society. Public invited to bring pictures to be scanned and placed on luminaries, which may be purchased by donation. 508-737-5412.

''Welcome Spring,” fundraiser with silent auction and wine, 5:30-8 p.m. Wednesday, Pebble Beach Room at Olde Barnstable Fairgrounds Golf Course, Route 149, Marstons Mills. Wine tasting sponsored by Cotuit Liquors. $35 or $60 per couple; proceeds benefit Marstons Mills Public Library. Tickets: Call 508-428-5175 or visit the library's circulation desk, 2160 Main St.