San Pedro Underwater Archaeological Preserve State Park

San Pedro Underwater Archaeological Preserve State Park protects the remains of the San Pedro, a Spanish treasure galleon that sank in 1733 during a hurricane. Located off the coast of Islamorada in the Florida Keys, this unique preserve combines maritime history with thriving marine habitat, making it one of Florida's most distinctive protected areas. The wreck site sits in shallow water, typically 5 to 35 feet deep, making it accessible to both snorkelers and scuba divers of varying experience levels.

Visitors can explore the scattered remains of the shipwreck, including anchors, ballast stones, and other artifacts that provide tangible connections to Spain's colonial maritime past. The site is marked with mooring buoys to protect both the archaeological resources and the surrounding coral reef. Beyond the historical significance, the preserve encompasses a vibrant coral reef ecosystem that has flourished around the wreck structure.

The park offers an unparalleled opportunity to witness Florida Keys marine life while learning about centuries-old history. Whether you're a history enthusiast, marine biology lover, or adventure seeker, the combination of archaeological exploration and reef snorkeling creates a memorable and educational experience. The preserve is carefully managed to balance public access with protection of its fragile cultural and natural resources.

The preserve supports diverse marine life including colorful reef fish such as parrotfish, grouper, snapper, and angelfish, as well as sea turtles and rays. The coral formations around the wreck provide habitat for sponges, sea fans, and other invertebrates. Visitors may also encounter nurse sharks and other reef inhabitants. The shallow waters support seagrass beds and patch reefs that contribute to the overall health and biodiversity of this unique underwater environment.

• This is an offshore park accessible only by boat; visitors must arrange private boat transportation or charter services from nearby Islamorada. • The best visiting conditions occur during calm seas and good visibility, typically from May through September and in winter months when weather permits. • Bring snorkeling or diving gear, or rent equipment from local outfitters in Islamorada before heading to the site. • Use the marked mooring buoys rather than anchoring to protect the archaeological site and coral reef. • Check current conditions and weather forecasts before your trip, as water conditions in the Keys can change rapidly.