Sumner Ninja runs week-long ninja day camps for ages 5 and up at its Auburn gym, with nine weeks from late June through August 28. Full days run 8:00am to 2:00pm ($300/week or $75/day) and half days run 8:00am to 12:00pm ($215/week or $55/day); a $50 deposit per child per week is required at registration and each additional child gets 10% off. Snacks are provided and campers must be fully potty-trained. Drop-ins must be approved 48 hours ahead and walk-ins are not accepted; registration is by enquiry form.
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 Sumner Ninja directly before you register or pay. Last checked August 2026.
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★★★★★Rick StaffordI have a 10 year old that trains here and he always has a blast. ( just did the 4th wall or 12 ft wall), would definitely recommend.
★KairvetteI'd give these guys a minus star if I can. Our daughter, who's new to this gym really looked forward to joining. The coach here is beyond horrible. He didn't want to explain what each activity is. To someone who's new, he didn't bother to do a demo or teach in detail on how to accomplish these activities. Instead, he focused on a particular group only and did a horrible job with other groups from lack of attention and instruction. Will never come back ever again. Look else where for your kids for a great workout and fun time.
★★★★★Robin GoldSuper fun American ninja warrior style obstacle course gym for adults or kids! It's a chill and supportive environment for anyone who feels like trying it at any age or level. If you love the show and always wanted to try it, you can't go wrong with a trial class for ten bucks.
★★★★★MaryJean FischerI am 54 and I took my 11 and 14 year old nephews here for a trial hour on a Monday at 4pm. I did it too! There were 8 in the class. The Coach paired us off into stations. We rotated through 8 stations in an hour. It was challenging but doable. I want to fit this into MY life!
★★★★★Annabelle RossMy son did a Ninja birthday party. All the kids loved it. We had boys and girls ranging 3-10, and the coaches were patient and flexible with all of them. Giving the older kids ideas to make it more challenging. From a parent perspective, the party was chill and easy as the coaches did most of the work! Would definitely do it again.