Onset Island (Massachusetts)

Onset Island is a small island located at the western end of the Cape Cod Canal in the Town of Wareham, near Onset, Massachusetts. It is accessible by private boat. Approximately fifty families have summer homes on the island.

Map of Onset Island, Wareham, MA 02532, USA

Generally, one needs to be a homeowner, a guest of a homeowner, or someone who has rented a cottage from a homeowner, to visit the island.