Adding water results in less floury biscuits, larger foam dinosaurs, and slides that won't give a shirtless cousin a friction burn. Douse yourself in smooth-moving good times with today's Groupon: for $30, you get a four-pack of day passes for your family, good for one full day of access each, at CoCo Key Water Resort (a $60 value), located on South 72nd Street. These day passes must be used all on the same day, but are good for access on most weekends and holidays.

With a temperature of 84 degrees every day, CoCo Key Water Resort creates a tropical atmosphere for year-round amphibious amusement. With 55,000 square feet of attractions, families and other social units are sure to find something to suit every swimsuit, from the adventurous Parrot's Perch armed with water cannons to soothing giant whirlpools in the Palm Grotto outdoor/indoor spa. With its balmy climate control, swimmers can spite the weather and enjoy a tropical paradise that's far more relaxing than trying to cram a palm tree and a tube slide into their shower.

Children younger than the age of 2 are free.