Flow Vault Parkour and Ninja, established in 2016 at 9499 Washington St, Unit B in Thornton, runs day camps where kids learn parkour, Ninja Warrior and gymnastics skills through games, challenges and obstacle courses led by its coaching staff. Camp and party activities require participants to be at least 5 years old. The gym also runs year-round classes including Pre-K Parkour & Movement for ages 2-4, and hosts ninja competitions split into Beginner (7 and under), Intermediate (11U) and Advanced (12+) divisions.
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 Flow Vault Parkour and Ninja directly before you register or pay. Last checked August 2026.
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Google Reviews
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★★★★★Heather WenzA big shout out to couch Will for handling our big party this weekend. He was kind and very accommodating. Flow vault is a great space. I highly recommend booking your next birthday here.
★★★★★Courtney BlancoWhat a great gym! I'm very impressed with the homeschool class. To have all levels, and to keep all the kids engaged and working on their skills is not easy, and every class the coaches accomplish this feat. A+ Cat (kid) Wranglers. I'm very happy we found Flow Vault!
★★★★★Cody CoronaThis is easily the best parkour gym in Colorado and it has the best coaches! Jason gives the best advice and is great at keeping the kids safe while still having fun!
★★★★★Micah WilliamsFlow Vault and its coaches are ABSOLUTELY AMAZING!! This is one of the best non-traditional “sports” you can do for your kid. The coaches are encouraging, engaged, and hold the kids accountable while helping them strive for their best. My child has gained confidence, strength, and this is one activity he begs to come do. I cannot rave enough about this place. Thank you!! They also have fun adult classes!
★★★★★Josh KodraWe had a birthday party here for our 8 year old daughter today. The fees were reasonable and the coach (Jason) was very engaging and well organized. The party starts off with a review of the ground rules for the gym followed by a warm-up/stretch routine which included the safe ways to jump/fall from different heights. Following that all of the different obstacles were described and then the kids were cut loose. Jason continued to walk around the gym engaging the kids and ensuring everyone was staying safe. After that the coach ran through an obstacle course that was setup. Each kid was able to run it individually with Jason by their side to make sure they got through it safely. 12 kids total attending the party with no injuries and all of them were given plenty of time to get well worn out. My daughter had a great time and we look forward to our next opportunity to attend the gym!