Mackinac Island is unique in that, with the exception of emergency departments, there are no motorized vehicles permitted on the island. Getting to the island is facilitated by ferry transportation, and visitors with their own sailboats can find berths at a city-run marina. Once on the island, there are horse-drawn taxis and bicycles available. Visitors can enjoy natural attractions at Mackinac State Park, a space that boasts 2250-acres of trails in addition to a myriad of coastal wildlife and plants. From May to October, two butterfly exhibits on Mackinac Island showcase unique butterflies from around the world in a controlled environment. One attraction that isn't for the faint of heart, Mackinac Island features Haunted Theatre, home to wax figures and monster displays. Babysitting is available at the theatre as the displays are not suitable for younger children.