Forestier Peninsula is connected to mainland Tasmania at East Bay Neck, near the town of Dunalley at its northern end. At Eaglehawk Neck, the southern end of the Forestier Peninsula is connected to the Tasman Peninsula. It was at Blackman Bay on the shores of Forestier Peninsula that Dutch explorer Abel Tasman claimed formal possession of the land for Dutch Prince Frederick Henrijk on 3rd December 1642. After a failed attempt to land in the larger Marion Bay to the north on the previous day, the ship's carpenter, Pieter Jacobszoon, was given the task of swimming through the surf and planting a pole with the Dutch East Indies company mark carved into it, and the Prince's flag atop.