Thacher Island is open to the public from mid-June until mid September. It can be reached via the Thacher Island launch which runs on Wednesdays and Saturdays. Call 617-599-2590 for reservations. The island has 3 miles of groomed walking trails, a visitor center and museum, you can climb the north tower, visit the fog signal building and the principal keeper’s house or use the campground. Call the keeper for moorings and campground reservations at 508-284-0144 after June 1st. The island is maintained as a wildlife refuge pets are not allowed. Guest moorings are available and kayakers are welcome. The island is a National Historic Landmark one of fewer than 3000 in the nation.