Georges Island is one of the islands in the Boston Harbor, situated just over 7 miles from downtown Boston. The island has a permanent size of 39 acres, plus an intertidal zone of a further 14 acres, and rises to a height of 50 feet above sea level. Historic Fort Warren is on the island. Because of this, and since a ferry operates from Boston to the island, it is a popular destination and one of the easiest islands to access in the Boston Harbor Islands National Recreation Area.