This underwater archaeological preserve features a submerged shipwreck that is available for diving and snorkeling. Part of a Spanish flotilla, the San Pedro was a 287-ton, Dutch-built ship which sank in a hurricane on July 13, 1733. Her remains were discovered in 1960 in Hawk Channel near Indian Key. After major salvage efforts in the 1960s, all that remains of San Pedro is a large pile of ballast stones covering an area 90 feet long and 30 feet wide. The underwater site has been enhanced with seven replica cannons, an anchor, and an information plaque.