Yacht charter in Mystic is perfect to sail to to New England or Rhode Island. Mystic is located in New London County, Connecticut, between the towns of Groton and Stonington. Historically a leading seaport in the area, Mystic's nautical history is detailed at Mystic Seaport, the nation's largest maritime museum, which has preserved a number of sailing ships and seaport buildings. The village is located on the Mystic River, which flows into Long Island Sound and then out to the open sea.