
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 many of the joys and adventures of traditional overnight camp while being able 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.
Dates:
Monday-Friday weekly sessions run June 9 to Aug 8.
No day camp the week of July 4; we will offer a shortened residential camp that week.
Weekly Session Pricing:
Non-member $575, member $525
Registration requires a $50 deposit per week of camp (goes towards balance for week). Parents/guardians will be charged a one-time $100 registration fee per child that covers all YMCA 2025 summer camps.
Transportation:
The Y will bus campers to and from camp each day; pick up and drop off available at the Lafayette and Boulder Ys.
Lafayette Y: Bus departs for camp at 8am*; 5:45pm camper pick-up
Boulder Y: Bus departs for camp at 8:40am*, 5:15pm camper pick-up
*Check-in will begin 20 minutes before departure.
Please note: We do NOT provide lunch. We provide two snacks daily. Campers should bring a packed lunch daily.

DAILY ACTIVITIES
- Water obstacle course
- Paddle sports and water play on our own lake
- Fishing
- Climbing, rappelling, bouldering, and low ropes
- Target sports: archery and slingshots
- Field games
- Mountain biking
- Nature/STEM, including NASA Globe curriculum
- Hiking/Leave No Trace
- Unit games (Capture the Flag, etc)
- Arts and Crafts
- Camp traditions, songs and chants
- And more!
NEW THIS YEAR:
We are using a new platform for emergency medical information, medication information and waivers.
Once registered, you will be sent login information from CampDoc to provide us with your emergency and medical information. This profile must be completed 2 weeks prior to your child attending camp. Some medication administration will need additional time to work with our nurse and train staff.