THURSDAY, August 8
Advanced GPS Class. 6:30 p.m. REI Store, 1789 28th St., Boulder, 303-583-9970.
SATURDAY, August 10
A Bear’s First Love: Food! — Easy/moderate 2.4-mile hike. 8 a.m. Location provided with registration, Boulder, www.naturehikes.org.
Bottom Bracket Overhaul. 9 a.m. Community Cycles, 2805 Wilderness Pl., Ste. 1000, Boulder, 720-565-6019.
East End 2K. 8 a.m. 15th and Pearl streets, Boulder, www.boulderdowntown.com.
Leave No Trace Hike — A Junior Ranger Adventures Summer Challenge program for kids ages 6-13. 11 a.m. Caribou Ranch, 720-352-7041.
REI Muddy Buddy Boulder. 7:30 a.m. Boulder Reservoir, 5565 N. 51st St., Boulder, www.muddybuddy.competitor.com.
The Wonder of Walden — A Write & Sketch Hike. 9:30 a.m. Walden Ponds Wildlife Habitat, N. 75th Street between Valmont Road and Jay Road, Boulder, 303-678-6214.
SUNDAY, August 11
Bike to Farm Lunch — With Awe-Struck Outdoors. Lone Hawk Farm, 10790 N. 49th St., Longmont, 303-807-6634.
Outdoor Divas Spring Triathlon. 6:30 a.m. Union Reservoir, Country Road 26 off Highway 119, Longmont, www.withoutlimits.co.
Tuesday, August 13 Map and Compass Navigation Basics. 6:30 p.m. REI Store, 1789 28th St., Boulder, 303-583-9970.
Night Hike. 8:30 p.m. Bald Mountain Scenic Area, 303-678-6214.
To list your event, send information to: firstname.lastname@example.org. attn: “Adventure.”