Science and history tours of Gibraltar Island are offered Mondays and Thursdays at 10-11 a.m., 11:30 a.m.-12:30 p.m., 1-2 p.m. and 2:30-3:30 p.m. (or by appointment) starting May 6. Groups of up to ten people tour the island, including Perry’s Lookout and the glacial grooves and see the outside of Cooke Castle before learning more about Stone Lab programs. Registered guests meet at the Boardwalk Restaurant dock, 341 Bayview Ave. Put-in-Bay, Ohio 15 minutes before their tour is scheduled to start. Tours are $10 per person, free for children 3 and under, plus $6 for round-trip fare to Gibraltar Island, payable to the water taxi driver. The tour reservation form is available at go.osu.edu/gibraltar.