West of Rincon off the western coast of Puerto Rico, the snorkeling at Desecheo Island is know for its diverse marine life including butterflyfish, cowfish and triggerfish. Desecheo Island is a former bombing range and is quite abandoned. The best Desecheo Island snorkeling is off the calmer southwest coast in an area called South Gardens where you can expect to see turtles, stingrays and reef fish amongst giant sea fans and barrel sponges. The snorkeling on Desecheo Island is for advanced snorkelers only.
To reach Puerto Rico by air, fly into Luis Munoz Marin International Airport (SJU). To reach the snorkeling at Desecheo Island, use the 40 minute boat ride 14 miles west from Rincon and watch for humpback whales along the way across the open seas. The boats departing Rincon typically are small six person boats.
After a day of snorkeling at Desecheo Island, back in Rincon make sure to head to Sandy Beach to check out the Tamboo Beach Bar. Also, if you are looking for the best Rincon snorkeling, you’ll want to check out Steps Beach in the Tres Palmas Federal Marine Reserve.
Note: It is prohibited to go ashore on Desecheo Island due to the unexploded military ordinances.
Overall, Desecheo Island is the 11th most popular snorkel dive spot of all 17 snorkeling dives in Puerto Rico.