If this were New England, we'd be touting the "Best Place to Keep Warm." But it's South Florida, where trying to stay cool is the name of the game nearly year-round. And there are scores of people down here, all looking for the same relief. Many head for the beach. Just as many, it seems, head for the Rapids Water Park in West Palm Beach. But what's the fun of waiting in line ten minutes for 30 seconds on a waterslide? Especially after you've made yourself at least $26 poorer just getting into the damned place (stupid private parks). At least Palm Beach County's Coconut Cove Water Park doesn't charge $5 just for parking; parking's free, and admission is only $9.25 for adults, $7.25 for children ages 3 to 11, $3 for toddlers, and free for infants. With a 986-foot river ride, a sea monster walk lagoon, two 220-foot waterslides, and a children's water playground, Coconut Cove proves you can beat the heat without having to fight the crowd.