Convention & Visitors Bureau
2440 Pearl Street, Boulder, CO 80302 | 303.442.2911
The Trails in Motion Big Day Out is Boulder's first ever trail running festival. Come join like-minded trail runners, for an afternoon of trail running gear demos, pop-up expo, speaker series, kids activities, food vendors, craft beer garden and ending the night with the world's finest and inspiring trail running films at the Trails In Motion Film Festival.
The Festival will kick off at 3pm timed perfectly so you can still enjoy your morning run, volunteer in trail building or a trail race and come enjoy a relaxing evening with us.
Whether you are new to trail running or an avid trail user, there will be something for everyone to enjoy.
The day at the park is free, including fun kid activities and the pop-up expo.