Tumbleson Aerial Tumbleson Aerial

Join us at the Y’s brand-new lakeside mountain day camp located just 20 miles from Boulder. YMCA Camp Tumbleson Lake is a beautiful 300-acre outdoor adventure camp that celebrates exploration, nature education and recreation. 

Campers will get to experience the joys and adventures of traditional overnight camp — but they will get to come home each night with stories to share. Campers will grow their outdoor skills and knowledge while connecting with the camp community and building confidence and resilience… and of course, having a mountain of fun. YMCA Camp Tumbleson Lake will be unlike any day camp in Boulder County.  


Monday-Friday weekly sessions run June 10 to Aug 9. 
The Y will bus campers to and from camp each day; pick up and drop off available the Lafayette and Boulder Ys.  
7:30am-5:30pm (busses will depart the Ys in the morning at 7:30am, 7:45am and 8am)

Sitting at 9,000 feet, the picturesque property is located outside of Ward, a 40-minute drive from downtown Boulder. Camp is located at 173 County Road 96, Ward, Colorado.

Overnight camp coming in 2025! Details will be available in fall of 2024.

Tumbleson Navigating
  • Paddle sports and water play on our own lake 
  • Climbing, knot skills and bouldering 
  • Target sports: archery and slingshots 
  • Mountain biking 
  • Nature/STEM, including NASA Globe curriculum 
  • Hiking/Leave No Trace, including gnome hunts and wildlife safety 
  • Color wars Arts and crafts 
  • Camp traditions, songs and chants 
  • And more!