Olympia Ninja City in Ellisville is a ninja and gymnastics gym (serving the community since 1990) that runs weekly summer camps for kids ages 5 and up, June through August, with half-day and full-day options. Camps combine gymnastics, ninja obstacle training, games, crafts and team-building, with themed weeks such as Nerf, Ninja and Olympic Mania.
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 Olympia Ninja City - Ellisville directly before you register or pay. Last checked August 2026.
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★★★★★Sarah ThiemannMy son (4) had so much fun here at ninja summer camp. The coaches great - they are present, engaged and kind, and they truly play with the kids! My son laughed a ton and definitely wanted to come back.
★★★★★Michael GoedekerGreat gym for 3 yo ninjas. Our son loves it here and he is getting a lot better.
★★★★★Lisa LaBarge
★★★★★Cathy LuiSo much fun, awesome birthday party, employees were great with the kids
★★★★★Camille WeckerMy 4 year old did her first Ninja class tonight and it was awesome! I was super impressed. The coaches were exceptional with the kids, totally involved, and just all around good-tempered. My daughter came out sweaty, happy, and ready to go back! We signed up instantly for the class as tonight was just a trial.