My husband and I followed a Cape Cod local's advice and left our car behind on our day trip to Martha's Vineyard. While we were told we could get anywhere through the bus system on the island, we came during off season, and and weren't able to coordinate the bus schedule to get to Acquinna and Gay Head Lighthouse, which was very disappointing. We enjoyed Edgartown (though again, many shops were closed), walking through the gingerbread houses in Oak Bluff, and Vineyard Haven.