The CoCo Key Water Park Resort in Mt. Laurel provides aquatic entertainment for all ages. Open year-round, this resort is an all-indoor affair, with the exception of an open-air hot tub, and the water slides that protrude from the building’s exterior like an elaborate, serpentine garden sculpture. (Don’t worry, you enter and exit the slides with a roof over your head.) If you’re less amphibious in nature, CoCo Key also has an arcade and restaurant—so you can enjoy yourself while staying dry.