Southwest of Islamorada, the snorkeling at San Pedro Underwater Archaeological Preserve State Park is known for its visible shipwreck in 20 feet of water. The wreck sits in sea grass beds and mainly consists of the ballast stones. The best time for snorkeling at the San Pedro Underwater Park is during slack tide for clarity. If the sun is quite bright, snorkelers should be able to make out the cannons around the wreck (these cannons were placed here). You are likely to encounter snapper and grunts.
The San Pedro Underwater Park is located 1.25 nautical miles south of Indian Key. There are several mooring buoys.
Tip - After snorkeling at San Pedro Underwater Park, check out the Morada Bay Beach Café on Islamorada.
While the snorkeling at San Pedro Underwater Park is possible year-round, most snorkelers usually shoot for March through September. There is usually some rolling surf at most snorkeling sites off Islamorada, while you can expect the flatest surf conditions from June through August.
When using a dive boat charter to reach the dive site, make sure to reconfirm the reservation the afternoon prior. Most dive boats select the site the afternoon prior or even the morning of the dive. Also, most dive boats have a minimum passenger requirement in order to leave dock meaning they may cancel at the last minute, so when reverifying the afternoon prior ask how many reservations they have. To reach the snorkeling in the Florida Keys by air, there are several options. The most popular option is to fly into Miami International Airport (MIA), which is served by all major US and international airlines. Also nearby, a potentially lower cost option is to fly into Ft Lauderdale airport (FLL). From either of these airports, you can rent a car to drive south on the Florida Turnpike a couple hours to reach the Florida Keys (watch out for automated cash-less toll highways along the way). Alternately, you can fly into Key West International Airport (EYW) which is served by several airlines including United/Silver Airways, Delta, USAir and Southwest. If you don’t mind coming into Key West, there is also the regular Key West Express ferry service (4 hours) that runs from Ft Myers.
Overall, San Pedro Underwater Park is the 22nd most popular snorkel dive spot of all 40 snorkeling dives in the Florida Keys.