Cycling✓ Verified 2026-06-26
Saturday Morning Ride
Saturdays, 9:30am (later start Jun–Aug) · endurance & skills
Sanitas Brewing
FreeShoulder season
Runs March through August; summer months push the start time later.
The weekly outdoor lineup for Boulder.
Trail runs, group rides, climbs, hikes, and meetups across Boulder and the northern Front Range — find something to show up to this week.
Browse by activity
This week · 15 scheduled
Tomorrow
Trail Run⚠ Needs verification
Saturday Trail Run & Breakfast
Boulder Trail Running Breakfast Club
Saturday mornings · 2–4+ hours, easy to steep/technical, breakfast after
Carpool from downtown Boulder, or meet at the trailhead
Dog-friendlyFree
Start time and trailhead vary by week (posted on Meetup); pace and terrain range widely, so check the specific run.
Sunday
Road Run✓ Verified 2026-06-26
♥ FeaturedSunday Social Run & Walk
Sundays · 8:00am summer (Jun–Sep), 9:00am winter · long & short routes, snacks + coffee after
East Boulder Community Center, 5660 Sioux Dr
Beginner-friendlyNo-dropFree
Start shifts to 9:00am from October through May. Route options run from short loops to dirt trails.
Road Run⚠ Needs verification
Sunday Long Run
Sundays · easy long run, free & open to the public · location rotates weekly
Rotating Boulder-area locations (see club home page)
Beginner-friendlyNo-dropFree
Meeting spot changes each week — usually in or around Boulder, occasionally farther afield (e.g. Switzerland Trail). Check the club site for the week’s plan.
Birding⚠ Needs verification
Birds & Brew Social Walks
Boulder County Audubon Society
Every other month, Sunday afternoons · bird walk + a brewery after, all welcome
Rotating Boulder-area birding spots
Beginner-friendlyNo-dropFree
Sponsored by Boulder County Audubon; meets roughly every other month, start time keyed to sunset, ending at a nearby brewery. Beginners welcome.
Monday
Road Run✓ Verified 2026-06-26
Monday Pub Run
Mondays, 6:00pm · casual ~5K, all paces, no one left behind
Twisted Pine Brewing
Beginner-friendlyNo-dropFree
Six-plus rotating routes, all roughly a 5K, then beer and food at the brewery.
Tuesday
Cycling✓ Verified 2026-06-26
♥ FeaturedTuesday Night Ride
Tuesdays, 5:30pm · A/B/C pace groups, last group is no-drop
Twisted Pine Brewery
Beginner-friendlyNo-dropFree
Riders split into 18–20, 16–18, and 14–16 mph groups; only the last (C) group is explicitly no-drop.
Trail Run✓ Verified 2026-06-26
Tuesday Morning Trail Run
Tuesdays, 7:00am · 4–5 miles on trail
People’s Crossing Trailhead
Beginner-friendlyNo-dropDog-friendlyFree
An early trail run on open-space singletrack — well-behaved dogs are common on these foothill trails.
MTB✓ Verified 2026-06-26
GurlzRide
Tuesdays, 6:00pm · women’s ride, green/blue · Apr–Sep
Rotating Boulder County trailheads
Beginner-friendlyNo-dropFreeSummer
Women’s group ride with a ride guide; pace and trailhead posted weekly on Meetup.
Wednesday
MTB✓ Verified 2026-06-26
♥ FeaturedKnobby Wednesday
Wednesdays, 6:00pm · casual green-level ride, beginner-friendly · Apr–Sep
Rotating Boulder County trailheads
Beginner-friendlyNo-dropFreeSummer
Free and open to all, members and non-members alike. Green = little climbing, no exposure, good for newer riders. Trailhead changes weekly (posted on Meetup).
Road Run✓ Verified 2026-06-26
Wednesday Night Fun Run
Wednesdays, 6:00pm · easy 5K or 10K on the creek path, pizza + beer after
In Motion Running, 30th & Walnut
Beginner-friendlyNo-dropFree
A rotating vendor sponsors each week with samples and giveaways; beer for those 21+.
Thursday
Climbing✓ Verified 2026-06-26
Thursday Night Climbing Meetup
Thursdays, ~5:00pm · social climb, will belay newcomers, brewpub after
Movement Boulder (lower-right staircase)
Beginner-friendlyNo-dropPaid
A community-run Meetup at the gym (gym day pass / membership applies). Regulars will belay you or set you up with a group if you don’t belay; the crew heads to a brewpub around 7:00–7:30pm.
Cycling✓ Verified 2026-06-26
Thursday Road & Gravel Ride
Thursdays, 5:30pm · road and gravel options
Upslope Brewery, 1898 S. Flatiron Ct
Free
Road Run✓ Verified 2026-06-26
Thursday Fun Run
Thursdays, 6:00pm · ~3-mile road loop, no-drop
Fleet Feet Boulder store
Beginner-friendlyNo-dropFree
MTB⚠ Needs verification
Trails & Ale
Thursdays · intermediate-to-advanced (blue/black) ride, brewpub after · Apr–Sep
Rotating Boulder County trailheads
FreeSummer
The harder weekly ride, ending at a local brewpub. Start time and trailhead vary by week — confirm on the BMA Meetup before heading out.
More recurring & seasonal
Groups whose schedule rotates or is seasonal — check the source for the next date.
Trail Run⚠ Needs verification
Boulder Trail Runners Group Runs
Recurring trail runs in & around Boulder · most no-drop, all speeds
Boulder-area trailheads (see club site)
Beginner-friendlyNo-dropDog-friendlyFree
A club built around Boulder singletrack; check the site/schedule for the current run calendar.
Trail Run⚠ Needs verification
Women’s Group Runs
A couple of times a week · runs, jogs & hikes, 3–6 mi, all levels, coffee after
Rotating Boulder trails (e.g. Wonderland Lake)
Beginner-friendlyNo-dropDog-friendlyFree
Women-focused; mixes road, trail, and hikes with a strong social bent. Times posted per event on Meetup.
Cycling⚠ Needs verification
Community Bike Shop & Volunteer Nights
Ongoing · earn-a-bike, repair classes & volunteer shifts
Community Cycles shop, Boulder
Beginner-friendlyNo-dropCost varies
Not a group ride but the city’s nonprofit bike hub — recurring repair education and volunteer opportunities. Check the calendar for current days.
Hiking⚠ Needs verification
Rise & Grind Morning Hikes
Colorado Mountain Club — Boulder Group
Recurring early-morning hike + coffee series · volunteer-led, no charge
Boulder-area trailheads (see trip calendar)
Beginner-friendlyNo-dropFree
One of several regular Boulder Group series (alongside Hiker Happy Hour and the beginner Ascending Hike Series). Dates and trailheads are posted on the CMC trip calendar; sign-up usually required.
Hiking⚠ Needs verification
Hiker Happy Hour
Colorado Mountain Club — Boulder Group
Recurring after-work social hikes · volunteer-led, no charge
Boulder-area trailheads (see trip calendar)
Beginner-friendlyNo-dropFree
After-work social hikes from the Boulder Group; specific dates/times on the trip calendar.
Hiking⚠ Needs verification
Volunteer Naturalist Hikes
City of Boulder Open Space & Mountain Parks
Free interpretive hikes on Boulder open space · changing dates
OSMP trailheads (Chautauqua, NCAR & others)
Beginner-friendlyNo-dropFree
Naturalist-led interpretive hikes through the Flatirons open-space system; dates rotate — check the OSMP program calendar.
Hiking⚠ Needs verification
Trail Stewardship & Restoration Days
City of Boulder Open Space & Mountain Parks
Recurring volunteer trail-building & restoration projects
OSMP project sites around Boulder
Beginner-friendlyNo-dropFree
Hands-on trail work, restoration, and forestry projects; scheduled per project on the OSMP volunteer calendar.
Hiking⚠ Needs verification
Restoration Project Days
Wildlands Restoration Volunteers
Single-day & weekend volunteer projects across the Front Range · seasonal
Project sites around Boulder County & beyond
Beginner-friendlyNo-dropFreeSummer
Trail building, habitat and river restoration — 150+ projects a year, from single-day events to weekend wilderness work. Register per project.
Climbing⚠ Needs verification
Partner Board & Community Climbing
Ongoing · partner finder, classes & community nights
Movement Boulder
Beginner-friendlyNo-dropPaid
Find-a-partner board plus rotating classes and community events; check the gym calendar for current nights.
Climbing⚠ Needs verification
Classes & Community Climbing
Ongoing · adult & youth courses, fresh routes set 3×/week
Boulder Rock Club
Beginner-friendlyNo-dropPaid
Boulder’s original gym (since 1991); routes reset three times a week. Course schedule on the gym site.
Climbing⚠ Needs verification
Outdoor Rock & Ice Climbing Trips
Recurring guided climbing trips & courses through the school year
CU Boulder Rec Center / Front Range crags
Beginner-friendlyNo-dropPaid
Bouldering and rope climbing trips aimed at building beginner skills; part of 200+ annual Outdoor Pursuits offerings. Dates per the trips calendar.
Birding⚠ Needs verification
Bird Walks & Field Trips
Boulder County Audubon Society
Free, mostly seasonal field trips · Walden Ponds, Rabbit Mountain, Pella Crossing & more
Boulder County wildlife areas (see events page)
Beginner-friendlyNo-dropFreeShoulder season
Free local outings led by chapter birders; spring and fall are busiest. Dates and trip leaders posted on the events page.
Fly Fishing⚠ Needs verification
Hike & Fish Outings
Summer member outings into the high country · plus river cleanups & conservation work
Boulder-area & high-country waters
Beginner-friendlyNo-dropFreeSummer
The local Trout Unlimited chapter runs summer Hike-and-Fish trips plus conservation outings; specific dates posted on the chapter calendar.
Fly Fishing⚠ Needs verification
Guided Trips & Casting Help
By appointment · guided trips and shop know-how for all levels
Front Range Anglers, Boulder
Beginner-friendlyNo-dropPaid
A Boulder Creek fly shop with guides for every level; trips scheduled by appointment. Not a recurring meetup but the local fly-fishing hub.
Paddling⚠ Needs verification
Pool Roll Sessions & Beginner Instruction
Winter/spring pool sessions + a season of river trips & safety training
Front Range pools & rivers (see club calendar)
Beginner-friendlyNo-dropCost varies
One of the country’s oldest whitewater clubs (est. 1954). Indoor roll practice in the off-season, then beginner instruction and member river trips through the paddling season.
Paddling⚠ Needs verification
Lake Paddles & Pool Practice
Warm-season lake/reservoir paddles + winter roll & rescue practice in pools
Front Range lakes & reservoirs / indoor pools
Beginner-friendlyNo-dropCost varies
Members learn from each other and ACA-certified instructors; flatwater paddles in season, rescue/rolling practice in pools over winter. Schedule on the club site.
Hiking⚠ Needs verification
Outdoor Pursuits Trips & Courses
200+ trips a year · hiking, backpacking, kayaking, climbing & fly fishing
CU Boulder Recreation Center
Beginner-friendlyNo-dropPaid
CU’s outdoor program; primarily for students but a model of beginner-focused programming. Browse the trips calendar for current offerings.