Enjoy one of the largest indoor water parks in New England – CoCo Key Boston! Ride the giant water slides, splash in the activity pool, lounge in the lazy river, and hit the arcade. For the complete family fun experience, book an Overnight Water Park Package at the adjacent DoubleTree by Hilton Boston North Shore. Conveniently located at the intersection of Route 1 & I-95 in Danvers, MA. Complimentary parking on-site. Open year round.