Adopt-A-Stream planting day: 9 a.m. to noon March 29, Quade Creek, south Whidbey Island, volunteers age 10 to adult are welcome; 425-316-8592, www.streamkeeper.org/EarthDay.htm.
BIKES rides (www.bikesclub.org): Harbour Pointe Evangelical Lutheran Church, 5425 Harbour Pointe Blvd., Mukilteo is the starting point for all rides unless otherwise noted.
Cascade Bicycle Club: 7400 Sand Point Way NE, Building 138, Seattle; 206-522-3222, www.cascade.org.
Coast Guard boating classes: Through June 28, classes are Saturdays, except April 20, various locations in Snohomish and Island counties; skills include GPS for mariners and other skills; $25 or $35, depending on session; advance payment and registration required, checks are preferred; 206-399-9484 or e-mail email@example.com.
Tall Ships Tacoma: July 3 through 7, Thea Foss Waterway, Tacoma; early tickets $40 to $200, available online only, at www.tallshipstacoma.com; general sale date May 19; 253-272-5650 for details.
Wolf Camp Cooperative: 1 to 4 p.m. Saturday workshops, various locations, 1 to 4 p.m. Sunday workshops at Wolf Camp on Woods Lake, near Monroe. Registration required, $20 suggested donation each workshop, $15 per additional family member; 360-799-1997, www.wolfcamp.com.
Adventure Cycling Association: Various rides; 800-755-2453, www.adventurecycling.org/e23.
Backcountry Bicycle Trails Club: Ride Line, 206-283-2995.
Backcountry Horsemen (Traildusters): Activities for trail riding horse lovers. First Tuesdays, Flying Pig Restaurant, 2929 Colby Ave., Everett; 360-793-0380, e-mail firstname.lastname@example.org, www.bchw.org.
BIKES: Bicycling club offers year-round rides for all skill and age levels, second Thursdays, September through May; www.bikesclub.org.
Cascade Bicycle Club: Seattle-based club features a variety of ride levels, distances and locations; 206-522-3222.
Cascade Orienteering Club: Beginning instruction in navigating through woods; events for all skill levels; www.cascadeoc.org.
Edmonds Backyard Wildlife Habitat Project: Monthly meetings, dates and times vary, Frances Anderson Center, 700 Main St., Edmonds, unless otherwise noted; 425-771-0230, www.edmondsbackyardwildlifehabitat.org. Attendance is free, and all are welcome.
Emerald Sea Dive Club: Meets 6 p.m. first Wednesdays, Alfy’s Pizza, 4820 196th St. SW, Lynnwood. Features Puget Sound area dives and trips to the San Juans and Canadian destinations; all levels of divers welcome; 425-775-2410; P.O. Box 73, Edmonds, WA 98028.
Everett Mountaineers: Hiking, backpacking, climbing, scrambling, skiing, first aid, singles outings and kayaking, 7 p.m. first Wednesdays, First Congregational Church, 2624 Rockefeller Ave., Everett; 425-385-3660, www.everettmountaineers.org.
Everett Rowing: A group for new and experienced rowers featuring coaching, classes, competition, open rows, sweep and sculling; 425-257-8300.
Horse Country Farm: 8507 Highway 92, Granite Falls; weekly riding and care lessons, monthly trail rides, for ages 11 through adult, $69 per month; 360-691-7509, 425-335-4773, www.horsecountryfarm.com.
Hui Wa’a O Puget Sound Outrigger Canoe Club: Silver Lake, Hauge Homestead Park, corner of 19th Avenue SE and 121st Street SE; 425-744-1596.
North Sound Sea Kayaking Association: Saltwater outings, kayaking classes and more. Social hour 6:30 p.m., meetings at 7 p.m. first Thursdays, October through May, Legion Hall, 145 Alverson Road, Everett; 425-423-0883, nsseakayaker.homestead.com.
Northwest Quad Association: Bimonthly meetings and rides for ATV enthusiasts. Les Leonard; 425-424-3451, www.northwestquad.org, email@example.com.
NW Tulip Trekkers VolksWalk/Volkssport Club: Meetings usually 7 p.m. second Mondays, events start at various locations (see Web site); nonmembers invited, but registration is required, AVA credits available; membership $5 individual, $10 family per year; www.nwtrekkers.org.
Pilchuck Audubon Society: Birding trips and education, 7 p.m. second Fridays, Everett; 425-252-0926.
Pilchuck Treasure Hunting Club: A club for hobbyists dedicated to metal detecting, 7:30 p.m. third Wednesdays, Everett Firefighters Hall, 2411 Hewitt Ave., Everett; www.stanrs.pages.web.com/pthc/index.html.
PNW Four-Wheel Drive Association: Regional clubs meet 7:30 p.m. third Wednesdays, various locations. Tim Myers, 360-793-3543.
Seattle Mountaineers: 300 Third Ave. W., Seattle; 206-284-8484, 800-573-8484, www.seattlemountaineers.org. Membership meetings, 7:30 p.m. first Wednesdays, Tahoma room.
Skagit Bicycle Club: A Burlington-based bicycle group; 360-428-9487.
Snohomish County Mycological Society: Educational events, field trips, shows and classes, 7:30 p.m. second Wednesdays, Baker Heights Community Center, 14th and Poplar streets, Everett; www.scmsfungi.org.
Sound Rowers Open Water Rowing &Paddling Club: Meet at various sites for events; annual dues $25 individual, $35 family; also offers boating classes; www.soundrowers.org.
Sound Steppers Volkssport Club: 6:15 p.m. first Thursdays, Crossroad Church, 18527 60th Ave. W., Lynnwood; 425-775-0248, www.soundsteppers.org.
Volunteers for Outdoor Washington: Learn how to build trails and volunteer to construct and maintain hiking routes; 206-517-3019, www.trailvolunteers.org.
Washington Bass Association: 7:30 p.m. first Wednesdays, Meadowdale Community Center, 6801 N. Meadowdale Road, Lynnwood.
Washington Kayak Club: A Seattle-based kayaking club; 206-433-1983.
Washington Ski Touring Club: Trips, classes and volunteer opportunities for cross-country, telemark and backcountry skiers. 7 p.m. first Thursdays, November through April, REI, 222 Yale Ave. N., Seattle; 206-784-8741, www.wstc.org. Dues $20, $30 per family; new member orientation 6:30 p.m. before meetings.
Washington State Snowmobile Association: Regional clubs promote safety, legislation, activities and access; 800-783-9772, www.wssa.us.
Washington Trails Association: A volunteer organization working to protect and enhance hiking trails; 206-625-1367, www.wta.org.
Washington Water Trails Association: An organization dedicated to promoting preservation and stewardship of marine shorelines for recreational use by low-impact, beachable craft. Group is involved in developing the Cascadia Marine Trail; 206-545-9161, www.wwta.org.
Western Outdoor Learning Center: Activities include seminars, naturalist mentoring and walkabouts, meets at American Legion Memorial Park, 145 Alverson Blvd., Everett; 360-303-1191.
To enter an item in the Outdoors calendar, write to “Outdoors Calendar,” The Herald, P.O. Box 930, Everett, WA 98206, e-mail firstname.lastname@example.org. For information, call Melanie Munk at 425-339-3430.