things to do in Boulder, CO

Hike rugged Rocky Mountain National Park trails with a guide and learn its natural history

Explore Rocky Mountain National Park on a guided walk with natural and human history

Explore deeper trails, peaks, and lakes on a private Rocky Mountain hike

Private trail time with a guide, park entry, and mountain history

Explore Rocky Mountain National Park on a shorter private trail walk

Reach alpine Chasm Lake on a private guided hike beneath Longs Peak

See more than a mile of Christmas light displays from the tracks

Celebrate the season outdoors on a daytime railbike ride with seasonal treats and select Santa departures

Pedal the rails together with Coal Creek trestle views and a turnaround break

Pedal through Erie's haunted past on a lantern-lit railbike after dark

Make new connections on a gentle ride along Colorado's rails

Explore Rocky Mountain National Park’s lakes, overlooks, and trails with an expert guide

Hike beyond the crowds with an expert mountain guide

Seek mountain reflections at a sub-alpine lake away from the crowds

Put your night vision to work, then warm up with s'mores

Explore Rocky Mountain National Park after dark and learn to read the night sky

Take on a mountain summit challenge with a wilderness-trained guide

Explore alpine terrain with a guide who brings the mountain landscape to life

Discover a mountain lake with a safety-trained guide and activities for the whole family

Discover mountain waterfalls with a guide who brings the landscape to life

Cruise Boulder Reservoir with room to relax, picnic, and enjoy the water

Paddle Boulder Reservoir your way with gear and instruction included

Choose your watercraft and paddle Boulder Reservoir at your own pace

Explore Union Reservoir at your own pace with paddling support and gear included