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Outdoor activities

in Thornton, CO

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

Hiking

Walk 360 Mini-Loop: South Urban Hike (last one!)

Sat, Dec 13 · 09:00 MST

Walk 360 Mini-Loop: South Urban Hike (last one!)

by Boulder Ramblers

EVERGREEN MOUNTAIN LOOP + ALDERFER PARK HIKE!

Sat, Dec 13 · 08:00 MST

EVERGREEN MOUNTAIN LOOP + ALDERFER PARK HIKE!

by Alpine Adventurers Hiking

Green Mountain Winter Hike + Post-Hike Social @ Green Mountain Brewery

Sat, Dec 20 · 09:00 MST

Green Mountain Winter Hike + Post-Hike Social @ Green Mountain Brewery

by Denver Hiking Meetup Group

Holiday Hike: North Table Mountain & New Terrain Brewing

Fri, Dec 19 · 08:00 MST

Holiday Hike: North Table Mountain & New Terrain Brewing

by Rise and Hike! Fit & Fun Weekday Hikers

Walking

Women Walking: Longmont

Fri, Dec 12 · 07:30 MST

Women Walking: Longmont

by Women Walking: Longmont

Arvada Walkers

Fri, Dec 12 · 06:30 MST

Arvada Walkers

by Arvada Walkers

Walk @ DMNS/City Park

Sat, Dec 20 · 13:30 MST

Walk @ DMNS/City Park

by Walking Adventurers

Walk @ Crestmoor Park

Sat, Dec 13 · 13:00 MST

Walk @ Crestmoor Park

by Walking Adventurers

Running

5k Holiday Lights Run

Fri, Dec 19 · 18:15 MST

5k Holiday Lights Run

by North Thornton Runners

Monday 6pm Run in Washington Park, at the Recreation Center

Mon, Dec 15 · 18:00 MST

Monday 6pm Run in Washington Park, at the Recreation Center

by Colorado Achilles Runs

Run around City Park

Wed, Dec 17 · 18:30 MST

Run around City Park

by The Denver City Park Running Club

1st Run

Sat, Dec 13 · 08:30 MST

1st Run

by Just For Run: All body types, all ability levels Just start!

Cycling

How to Tune Your Rear Derailleur (December 13th at noon)

Sat, Dec 13 · 12:00 MST

How to Tune Your Rear Derailleur (December 13th at noon)

by Boulder "Learn to Fix Your Bike" Group

Monday looks good for a ride

Mon, Dec 15 · 12:00 MST

Monday looks good for a ride

by Denver Bicycle Touring Club - DBTC

Bicycle Aurora Saturday Ride!

Sat, Dec 13 · 12:00 MST

Bicycle Aurora Saturday Ride!

by Bicycle Aurora

Let's Ride That Iron Buffalo @ 10:00 am!!! 12/13/2025

Sat, Dec 13 · 10:00 MST

Let's Ride That Iron Buffalo @ 10:00 am!!! 12/13/2025

by Trek Broomfield Group Ride

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