Last month my kids were invited to a birthday party that was taking place at Rebounderz, over in Longwood. We drove over there for the party, and the kids had a blast!
They have to wear a helmet and pads (provided by Rebounderz), and they get to bounce on indoor trampolines. The kids had a wonderful time. They got so tired from bouncing that they were sweating up a storm and had to keep taking breaks. All a child needs is about an hour or less in this place and they are whipped!
On their site, as well as what I was told when I was in there, was that a location is in the works for Daytona Beach. You can read more about Rebounderz or see their other locations (Orlando, Jacksonville), here.
It's kind of a drive if that is all you are doing. But we had other planned stops after the party. If you are going to be in the area, or have other things you will want to do after Rebounderz, you may want to stop in and let the kids bounce around.