Volcano Island Waterpark, Sterling

Tucked away in Algonkian Regional Park there's a manmade tropical paradise called Volcano Island Waterpark. At this tiki-themed venue filled with cerulean waters and palm trees, kids and grownups careen down water-powered chutes before they splash into the pool below. A 500-gallon bucket dumps its contents on the play structure, which comes equipped with slides and squirt guns. When they want to soak up some sun, families can snag a few lounge chairs on the expansive patio or break for a snack at the cafe.