TUESDAY

Boulder Cycling Club Tuesday Night Ride -- Recreational, no-drop road bike ride averaging 25 miles at 13 to 16 mph; route changes weekly. Boulder Beer Company, 2880 Wilderness Place, Boulder; free; 6 p.m. Details: 303-875-2241.

Tuesday Hiking -- Bring a lunch and wear appropriate hiking clothing and boots; carpool to various trail heads and share cost of gas. North Boulder Park, Ninth Street, Boulder (meet in the parking lot at Seventh Street and Dellwood); 8 a.m. Details: 303-494-9735.

WEDNESDAY

Catfish Night -- Enjoy a summer night fishing at the lake; anglers must have current Colorado fishing license (kids under 16 years don't need license); open to shore fishing only. No live bait (worms and stink bait are okay). Boulder County Fairgrounds, Longmont ; 7:30 p.m. Details: 303-678-6204.

Fleet Feet Ladies Run -- Girls-only 3- to 5-mile run/walk, all abilities are welcomed. Fleet Feet Sports, 2624 Broadway, Boulder; free; 6 p.m. Details: 303-939-8000.

Hike at Night -- Join volunteer naturalists and explore nature under cover of darkness on a 2-mile roundtrip hike on a moderate trail; enjoy the starlight, listen for night sounds and learn about the nocturnal habits of the critters that live here. Bring a flashlight. Walker Ranch, 7250 Flagstaff Road, Boulder (meet at the Meyers Homestead trailhead); free; 8:30 p.m. Details: 303-678-6214.

THURDAY

West End 3K -- The West End 3K community event, shown above, for serious runners, as well as kids and families; kids 11 and under can run a 1,500 meter course, while adults do the full 3K. Corner 11th and Pearl streets, 1048 Pearl St., Boulder $10-$20; 6 p.m. Details: 303-442-0041.