When was the last time you laughed so hard you fell over? Have you pushed your best friend off a high ledge into some salt water lately or run around for hours until you got sunburned — all without the aid of alcohol? Maybe you're looking to get a little exercise this summer but don't want to sweat the hard stuff. Perhaps you simply want to break out of your boring routine and give something wonderfully wacky a try. If you want some good, clean fun in the sun, there's no better destination than Jungle Island's floating obstacle course/water park, Rainforest Riptide. It sits curiously on beautiful Biscayne Bay, visible to passing cars yet seemingly miles away from the everyday hustle. A person can spend hours trying to climb to the top of the rope incline or clear the poleless vault. Race your friends to see who can run around those tight corners and make a full lap, which is hysterically next to impossible. Play on the trampolines, the balance beams, the catapult, and the swing, and before you know it, the sun is setting and you've worked up an appetite big enough to eat a whale. It's a great place to bring kids aged 3 to 93, as long as they know how to swim. Rainforest Riptide day passes, which include admission to Jungle Island, start at $31.95. It's open from 10 a.m. to 6 p.m. daily, weather permitting, and hey, on the way out, you can stop and hang with the monkeys.