Heritage center by donation. Glass-bottom boat ride $30; $10 (ages 0-12).
Daily 9-7, July-Aug.; daily 9-5, Memorial Day weekend-June 30; daily 10-5, day after Labor Day to mid-Oct.; Mon.-Sat. 10-5, Sun. noon-5, rest of year. Boat tours offered daily Memorial Day weekend to mid-Oct.; phone for schedule. Closed Jan. 1, Thanksgiving, Christmas Eve, Christmas and Dec. 31. Phone ahead to confirm schedule. Allow 1 hour minimum.