San Pedro Underwater Archaeological Preserve State Park
Florida

San Pedro Underwater Archaeological Preserve State Park

77200 Overseas Hwy Islamorada, FL 33036
Available Activities
  • Hiking
  • Camping
  • Swimming
  • Fishing
  • Boating
  • Wildlife Watching
  • Picnicking
  • Bird Watching
  • Cross Country Skiing
  • Snorkeling
  • Scuba Diving
  • Kayaking
  • Paddling
  • RV
  • Cabins
Cannons from shipwreck at San Pedro Underwater Archaeological Preserve State Park
Cannons from shipwreck at San Pedro Underwater Archaeological Preserve State Park. Photo: Park Facebook Page.

San Pedro Underwater Archaeological Preserve State Park is the site of one of the oldest shipwrecks in the Florida Keys. This beautiful Florida state park is located 1.25 nautical miles south of Indian Key, 36 miles south of Key Largo.

Guests enjoy swimming, snorkeling and scuba diving to get a closer look at the submerged San Pedro, a 287-ton Dutch-built ship that was part of a Spanish flotilla that sank during a storm here in 1733. Even though all that exists today of this massive ship is a large pile of ballast stones, the site has been enhanced for visitors with the addition of replica cannons and an anchor.

Activities

Spend an adventurous day swimming, snorkeling and scuba diving along the Florida Keys. San Pedro Underwater Archaeological Preserve State Park is home to one of the oldest shipwrecks in Florida. This state park is only one mile from indian key historic state park where guests may kayak, hike, fish, and picnic.

Here are some activities that you can do during your visit to San Pedro Underwater Archaeological Preserve State Park:

History of the San Pedro Underwater Archaeological Preserve State Park

The submerged San Pedro ship was part of the New Spain Fleet that left Havana on July 13, 1733 on route to Spain. Twenty-one ships made up this fleet that was carrying silver, gold, jewels, rare spices and tanned hides.

As the fleet sailed into an oncoming hurricane they turned around and tried to make their way back to Havana, but were unable to make it. The storm grounded 19 of the ships along the Keys and the survivors sought refuge on the nearby islands. Rescue ships eventually arrived and salvaged what treasures they could while burning the ships so that they would remain hidden from looters.

When the Sand Pedro was discovered in the 1960s, local divers found silver coins dating from the 1730s.

Snorkeling and Scuba Diving at San Pedro Underwater Archaeological Preserve State Park

Swim, snorkel and scuba dive to see the treasures under the water inside San Pedro Underwater Archaeological Preserve State Park. Guests who plan to scuba dive or snorkel must be able to swim a distance of 2 miles out to the site, be able to follow instructions, and be able to withstand exposure to the sun for long periods of time.

Swimming at San Pedro Underwater Archaeological Preserve State Park

Swim in the beautiful and refreshing water surrounding San Pedro Underwater Archaeological Preserve State Park.

Guests will enjoy swimming, floating, snorkeling and scuba diving as they discover and explore the historic shipwreck located within the park. Swimming is allowed within designated areas only.

Birding at San Pedro Underwater Archaeological Preserve State Park

San Pedro Underwater Archaeological Preserve State Park may feature underwater treasures and colorful coral and fish but it is also a great spot to birdwatch.

During your visit to this part of the state you can be sure to see many species of native and migrating birds. Here are some species that you may see: White Ibis, Brown Pelican, Snowy Egret, Great Blue Heron, Purple Gallinule, osprey, frigate, cormorants, flamingoes, anhingas, albatrosses, storks, loons, plovers, ruddy turnstones and willets.

Nature and Wildlife at San Pedro Underwater Archaeological Preserve State Park

Guests are encouraged to swim with the fish during their visit to San Pedro Underwater Archaeological Preserve State Park. That’s because more than 65 species of fish and 10 species of coral have been documented inside here and along the Spanish Galleon Trail. Some of these include white and blue striped grunts, gray and lane snappers, small gobies, lobster, eels, grunts, spadefish, hogfish, parrotfish and groupers.

Pets at San Pedro Underwater Archaeological Preserve State Park

Pets are not allowed at San Pedro Underwater Archaeological Preserve State Park.

Camping Near San Pedro Underwater Archaeological Preserve State Park

Spend an adventurous day swimming, snorkeling or scuba diving at San Pedro Underwater Archaeological Preserve State Park; and then head over to Bahia Honda State Park and spend the night. This nearby state park, located at 36850 Overseas Highway in Big Pine Key, features a campground, cabins and marina with overnight boat slips.

The park’s three campgrounds consist of 80 campsites that range from primitive tent-only ones to those with water and electric hookups. Each campsite has a picnic table, grill and access to bathhouses.

The Marina’s 19 boat slips include electricity, water and sewage pump-out and are located near bathhouses. Cabins have 2 bedrooms, full baths, a living room, full kitchen, dining area and a porch that offers guests a beautiful view of the bay.

Park Location

San Pedro Underwater Archaeological Preserve State Park 77200 Overseas Hwy Islamorada, FL 33036 Phone: 305.664.2540

Website

Map

Frequently Asked Questions

How much does it cost to enter a Florida state park?

Most Florida state parks charge $4 to $6 per vehicle (up to 8 occupants). An individual annual pass costs $60, and a family annual pass costs $120, covering unlimited visits to all state parks.

Can I swim with manatees at Florida state parks?

While you cannot swim with manatees (they are protected), several spring parks like Blue Spring State Park offer excellent viewing from boardwalks. Manatees gather in springs from November through March when river temperatures drop.

Are alligators dangerous in Florida state parks?

Alligators are present in virtually all freshwater bodies in Florida. They are generally not aggressive toward humans, but you should never approach, feed, or harass them. Keep children and pets at a safe distance from water edges.

What is the best time to visit Florida state parks?

Winter and spring (November through April) offer the best conditions: pleasant temperatures, low humidity, fewer mosquitoes, and peak manatee viewing. Summer brings extreme heat, humidity, and daily thunderstorms.

Explore More Florida State Parks

San Pedro Underwater Archaeological Preserve State Park is one of many outstanding state parks in Florida. Discover more parks in our Best State Parks in Florida guide, or use our Park Finder to search by activity, location, or features.

State Parks Team
Written by

State Parks Team

Editorial Team

The State Parks Team is a group of outdoor enthusiasts, researchers, and travel writers dedicated to showcasing America's state parks. Drawing on collective experience visiting parks in all 50 states, the team creates detailed guides, curated park lists, and practical tips to help visitors make the most of their state park adventures. Our mission: making America's state parks accessible and enjoyable for everyone.

Last updated: February 8, 2026

Park Location

77200 Overseas Hwy Islamorada, FL 33036