Skate, bike, or speed-slide in the water. It's your choice at these two parks, operated by the Nashville Parks and Recreation Department. Located just off Briley Parkway at Two Rivers Park and Golf Course, Wave Country has a huge freshwater wave pool as well as a wave-free pool, three water flumes, and two speed slides. The Skatepark allows skateboards, in-line skates, and pegged BMX bikes; helmets are required, and protective knee pads are recommended. So pick your park, pack a picnic, and make an afternoon of it.