Outdoor activities

in Boulder, CO

Discover outdoor activities in Boulder with Meetup. Whatever your interest, Meetup helps you connect with like-minded people.

Hiking

Boulder Walk 180: Eastern Half of the Slow Marathon

Boulder Walk 180: Eastern Half of the Slow Marathon

Sat, May 30 · 8:30 AM MDT

by Boulder Ramblers

Walker Ranch Loop ~8 mi

Walker Ranch Loop ~8 mi

Sat, May 30 · 8:00 AM MDT

by Colorado Trailblazers 40+

Boulder Morning Hike for 20s & 30s - First & Second Flatirons

Boulder Morning Hike for 20s & 30s - First & Second Flatirons

Sat, May 30 · 8:00 AM MDT

by Make New Friends Meetup Group

Boulder Walk 180: Western Half of the Slow Marathon

Boulder Walk 180: Western Half of the Slow Marathon

Sat, Jun 13 · 7:30 AM MDT

by Boulder Ramblers

Walking

Filming Nature at Barr Lake

Filming Nature at Barr Lake

Sat, Jun 20 · 2:00 PM MDT

by Nature Filming Club

Boulder Reservoir "Beach" Walk Followed by Spitz Mediterranean

Boulder Reservoir "Beach" Walk Followed by Spitz Mediterranean

Sat, Jun 6 · 9:00 AM MDT

by Longmont Walks

St. Vrain Greenway
Morning Nature Walk

St. Vrain Greenway Morning Nature Walk

Tue, Jun 2 · 8:00 AM MDT

by Longmont Walks

Fowler/Goshawk

Fowler/Goshawk

Tue, Jun 9 · 9:00 AM MDT

by Boulder Social Hikers, Bikers and More!

Running

THURSDAY NIGHT Weekly Social Run at Shoes and Brews!

THURSDAY NIGHT Weekly Social Run at Shoes and Brews!

Thu, Jun 4 · 6:00 PM MDT

by Longmont Running

Achilles run and walk

Achilles run and walk

Sun, May 31 · 9:00 AM MDT

by Boulder Achilles running and walking

Achilles community run and walk

Achilles community run and walk

Thu, Jun 4 · 5:30 PM MDT

by Boulder Achilles running and walking

Let's Get Together for an Early Morning Run and Coffee!

Let's Get Together for an Early Morning Run and Coffee!

Fri, Jun 5 · 7:00 AM MDT

by Boulder Women's Running Club

Cycling

Road bike ride to Berthoud

Road bike ride to Berthoud

Tue, Jun 2 · 9:00 AM MDT

by St. Vrain Cyclists - (prev. Longmont Easy Riders)

Spin Into the Setting Sun 2026 (A/B1/B2 at 5:30, B3 at 5:00)

Spin Into the Setting Sun 2026 (A/B1/B2 at 5:30, B3 at 5:00)

Tue, Jun 2 · 5:30 PM MDT

by St Vrain Chain Gang Bicycling Club (SVCG) - Longmont, CO

Swift Cycling Gravel Ride

Swift Cycling Gravel Ride

Sat, May 30 · 10:00 AM MDT

by Swift Cycling

Let's Ride to Confluence Park @ 9:00 AM!!!

Let's Ride to Confluence Park @ 9:00 AM!!!

Sat, May 30 · 9:00 AM MDT

by Trek Broomfield Group Ride

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