Jonas Gymnastics is a great place to join or go to birthday parties. A brand new HUGE building with lots of space inside. Filled with brightly colored mats, balance beams, trampolines, ropes and other equipment. The instructors are all expertly trained and very friendly. They really help the kids get over their fears, if any, of the equipment. I really like that they offer age appropriate classes and a mommy & me class too. It's a good way to get the kids interested in gymnastics.