Hours: Tours depart from Liberty Square daily at 9:30, noon, 2:30 and 4 and from Patriots Point daily at 10:30, 1 and 3:30, mid-Mar. through Aug. 20; otherwise varies. Visitors should arrive 30 minutes prior to departure. Visitor center daily 8:30-5. Closed Jan. 1, Thanksgiving and Christmas. Phone ahead to confirm schedule.