Visitor center and trolley free. Boat tour $12; $10 (ages 62+); $8 (ages 6-16). Reservations are required for boat tours.
Visitor center daily 9-5. Boat tours are offered daily, Memorial Day-Labor Day; Sat.-Sun., day after Labor Day-Columbus Day. Trolleys operate daily, mid-Mar. through Columbus Day; Sat.-Sun., day after Columbus Day-late Nov. Phone ahead for exact schedules. Closed Jan. 1, Thanksgiving and Christmas.