T.H.
I was also going to suggest gymnastics and indoor bounce houses, so it seems to be there theme here already! There are also places that are bounce house/climbing places like Monkey Joes, etc.
You could also do Build-A-Bear, which does get a little pricey, but is perfect for the toddler crowd. We did it once and limited the choices on bears and only one accessory and all the kids loved it.