Have a Swimming party at a small waterpark in NJ Crystal Springs is a great place to have your next children's party! Crystal Springs is a Municipal water park located in East Brunswick New Jersey. You do not have to be a resident of East Brunswick to enter although the fee is a little higher. The park has small splash pools for the smaller children, two large pools for swimming, a couple of fun water slides and a 'lazy river' where you can float around the perimiter of the partk. They have a beach sand play area, a small concession stand and full bathroom facilities. Crystal Springs has lounge chair seating for over 400 guests or you can bring your own chair. Outdoor grills are available for your party convenience. You are also allowed to bring in your own food and beverages but Alcohol and Glass Containers are prohibited.