Discounted Amusement Park Tickets Discounted amusement park tickets to Cedar Point (Sandusky, Ohio), Michigan Adventures (Muskegon, Michigan) and the Oakland County Water Park (Waterford, Michigan) are sold Memorial Day through Labor Day at the front desk of the Bennett Recreation Center, 925 W. Grand River Avenue during normal business hours. Cash only accepted for Amusement Park Tickets. NOTE:  Ticket prices for Summer 2009 will be set early in the year and uploaded here when they become available.