THURSDAY, August 1
Dirty Thursday Road — With Boulder Cycling Club. 6 p.m. Old Chicago in Superior, www.bouldercyclingclub.org.
SATURDAY, August 3
Bats: The Misunderstood Mammal. 7:30 p.m. Location provided with registration, Boulder, https://bouldercolorado.gov.
Boulder Kids Triathlon. 7 a.m. Boulder Reservoir, 5565 N. 51st St., Boulder, www.ironkids.com.
Boulder Nites Classic — Benefit for Parks and Recreation and PLAY Boulder Foundation. 5:30 p.m. North Boulder Park, 8th Street and Alpine, Boulder, www.BoulderNitesClassic.com.
Chicks on Bikes — Bike commuting basics for ladies. 9 a.m. Community Cycles, 2805 Wilderness Pl., Ste. 1000, Boulder, 720-565-6019.
Colorado Cyclist Copper Triangle. 5:45- 7:45 a.m. start time. Copper Mountain Resort, www.coppertriangle.com.
Wabi Sabi — Finding beauty on OSMP. 9 a.m. Location provided with registration, Boulder, http://wabisabi.eventbrite.com.
SUNDAY, August 4
Bike Patrol with the Rangers — A Junior Ranger Adventures Summer Challenge program for kids ages 6-13. 11 a.m. Mud Lake, Nederland, 720-352-7041.
Butterflies and Other Flying Creatures. 9 a.m. Heil Valley Ranch Open Space Lichen Loop Trail, Lyons, 303-678-6214.
Rohto Ironman 70.3 Boulder Triathlon. 6 a.m. Boulder Reservoir, 5565 N. 51st St., Boulder, http://www.ironman.com.
TUESDAY, August 6
How to Climb a 14er. 6:30 p.m. REI Store, 1789 28th St., Boulder, 303-583-9970.
Five for Fire 5K Fun Run Series. 6:30 p.m. 303 Vodka, 2500 47th St., Unit 10, Boulder, http://r2dg.org.
WEDNESDAY, August 7
Hike at Sunset — Lichen Loop Trail. 6:30 p.m. Heil Valley Ranch, Lyons, 303-678-6214.
To list your event, send information to: firstname.lastname@example.org. attn: “Adventure.”