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KJ's Gymnastics

★★★★½ 4.938 reviewsValatie, NYAges 3+

Private

KJ's Gymnastics runs themed weekly summer day camps built around gymnastics and NinjaZone in a 12,000-square-foot gym with obstacle courses and inflatables. Weeks are themed - circus skills, cheer and tumbling, ninja and Nerf battles, a sports all-star or gymnastics showcase week, and a color week - with tie-dye, a water day and a Friday show each week. Full-day camp runs 9am-4pm Monday-Friday for ages 4.5 and up, half-day options run 9am-12pm or 1-4pm, and a three-day Mini Camp serves ages 3-5 in the mornings. Before care (8-9am) and after care (4-5pm) are available hourly, with a 20% sibling discount and tiered pricing that rewards early registration.

The practical details

Daily hours
9:00am–4:00pm
Ages
Ages 3+
Environment
Indoor/Outdoor
Operator
Private
Before/After CareSibling DiscountHalf-Day OptionEarly Bird Discount
Before you register

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 KJ's Gymnastics directly before you register or pay. Last checked August 2026.

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★★★★★Jake

Such a good program the kids love the instructors.

★★★★★Amanda Domery

Absolutely fantastic gym! They offer both gymnastics and ninja classes, which vary in the skills taught. Every staff member is not only skilled, but also wonderful at working with children. They also offer birthday parties that are fun and well organized, and are less costly than most places. The summer camp is also fantastic!! Can't say enough amazing things about KJs!

★★★★★Kristen Bianco

Both my daughters love it here! The younger does parent toddler class & has learned so much since beginning in September. My older daughter is ADHD & Autistic, I enrolled her in Ninja & am so impressed with how great the staff is with her, she's truly built a great trust with you all!!

★★★★★Laura H

We just had my daughters 4th birthday here and it was amazing. From start to finish the staff were wonderful (shout out to Justin for being such a WONDERFUL instructor/host), and the kids were engaged, and had so so so much fun. The first hour is on the gym floor with a fun warm up/stretching, then 3 different stations, each one led by the instructor. He was accommodating, engaging, and great with keeping the excitement going with each activity. After that there’s a huge room with inflatables that the kids loved as well: the pacing of the whole party was perfect. Literally no complaints- if anything, the kids did NOT want the party to end. Thank you to KJs for really making it a special time.

★★★★★Christina McComish

My granddaughter has been attending KJ's for several years now. She started out in gymnastics and soon added the Ninja class as well. We have been very happy with our experience with the programs offered as well as the staff. We have had birthday parties there as well and have never had any concerns for the care that she has been given. There is a personal touch so that all of the students are truly "known" and can feel the care of the staff. The classes have allowed my gd to build the self confidence and strength that children need in this time. I have utmost respect for KJ and her staff and the great service that they provide.

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