Cruise the harbor and enjoy breathtaking views of the Atlantic Ocean while you make your way to historic Fort Sumter. Learn about the fort's important role in the Civil War, and be sure to visit the museum and souvenir shop on-site. The two-hour tours depart from visitors center at Liberty Square downtown and from Patriots Point in Mount Pleasant. Tickets: Adults $24 children (11-4) $16, children 3 and below free . Departure times vary by location.