In 2007, a concession was granted to Statue Cruises to operate the transportation and ticketing facilities, replacing the Circle Line which had operated the service since 1953.[19] The waters are patrolled by the U.S. Park Police[20][21] to enforce the restriction on private boat landings. Ferries depart from both parks and all boats stop at both islands, enabling passengers to visit both islands and choose either destination on the return trip.[22][23]