Common Ground Playground in Lakeland. It's quite a drive from here, but when we go, the kids easily and happily play for at least six hours here. (A McDonalds is just around the corner, so lunch is easy, too). There are several playgrounds within the park, for kids of all ages and abilities. Plenty of shade for parents to sit in. Several tennis courts. A great way to spend the day, for LOTS less than the local theme parks.