266 acres. Frontage: almost three miles. The largest island visible to the west from the Mackinac Bridge. The preserve covers the entire island except for the lighthouse and its three acres of grounds. A rough trail connects the lighthouse to the old village site on the north side of the island (trail is sometimes impassable due to poison ivy). The Beach Trail, along the south side of the island, follows an old ridge running parallel to the shore. Access is only by boat. Nearest boat ramps are in St. Ignace, Point La Barbe and Mackinaw City. Anchor a boat or land a kayak at the sheltered bay near the old village site on the north side of the island.