So your doctor's been telling you to take better care of yourself, as always. And, as always, he uses the dreaded e word: exercise. However, running around your block means passing by that neighbor whose vacuum cleaner you borrowed and conveniently misplaced. But that's just as well, because what you need is a full exercise course with chin-up bars, steps, and various beams to help stretch all those neglected muscles. The course at South County Regional Park has 20 such stations. And when you're all done, you don't have to hurry home to shower -- the enormous Coconut Cove Waterpark is right there. Of course, if you skip both activities, you've still got 856 acres' worth of park to explore. That means baseball fields, tennis and volleyball courts, the Daggerwing Nature Center, a remote-control car track, a remote-control airplane field, and more open space than Wal-Mart would know what to do with.