Southwest of Pensacola off the south side of Santa Rosa Island, there is good snorkeling around the wreck of the Catherine. This 1869 ship was nearly 200 feet long and lies in 15 feet of water about 1,000 feet offshore of Santa Rosa Island. The wreck of the Catherine is within the Gulf Islands National Seashore and is located off the west end of Santa Rosa island just offshore of Battery Langton. You may encounter bottlenose dolphins, sea turtles and stingrays. To reach the snorkeling off the panhandle of Florida by air, you will need to fly into either Destin Fort Walton Beach Airport (VPS) or Northwest Florida Beaches Airport (ECP) north of Panama City.
While experienced snorkelers who are very strong swimmers may approach from shore, it is highly recommended to snorkel the Catherine via chater boat. There are strong surges and tidal currents, along with heavy boat traffic. A dive marker buoy is also recommended.
Overall, Catherine Wreck is the 10th most popular snorkel dive spot of all 11 snorkeling dives in Florida Panhandle.