Bar Harbor, town (1990 pop. 2,768), SE Maine, on Mount Desert Island and on Frenchman Bay; settled 1763, inc. 1796. It was a famed New England resort during the 19th cent. Bar Harbor is a port of entry, with ferry connections to Yarmouth, N.S., during the summer. In 1947 a large part of the town was destroyed by fire. Jackson Memorial Laboratory for biological research and the College of the Atlantic are there. Nearby Acadia National Park is a major tourist attraction.