The Ruth Lilly YMCA Outdoor Center, also known as Flat Rock River YMCA Camp, is an overnight residential camp on the Flat Rock River in St. Paul, Indiana, for children ages 7–17. Campers take part in kayaking, swimming, rock climbing, archery, nature hikes, high ropes, paddleboarding, and ziplining. It is a nonprofit YMCA of Greater Indianapolis camp founded in 1946.
The practical details
We list only what the camp itself publishes, and programs change — dates, prices, ages and availability can all move after we check. Confirm the details on the camp’s own website and contact Ruth Lilly YMCA Outdoor Center directly before you register or pay. Last checked August 2026.
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★John HarrisNoisy, sounded like a cult with all the loud chanting all day. I wasnt there I was at Hidden Paradise Campgrounds trying to enjoy a quiet Sunday.
★★★★Kelly WilsonGreat place for groups. We took our youth group this past weekend and they loved it. It was a bit cold and muddy, but all the boys had a good time. Check out the website there is always something going on for groups or family events.