By Water: 25.1242155, -80.2974027
Christ of the Abyss is a 8 1/2 foot, 4000 pound bronze sculpture of Jesus Christ that stands in 25 feet of water off of Key Largo - in the John Pennekamp Coral Reef State Park. It is a copy of "Il Cristo Degli Abssi," located in the Mediterranean Sea near Genoa, Italy. In 1961 Italian SCUBA entrepreneur Egidi Cressi commissioned the second casting from the original mold, and donated it to the Underwater Society of America. The statue ended up in storage at O'Hare airport in Chicago, waiting for a home. Senator Spessard Holland of Florida helped John Pennekamp Park to get the nod, where it was placed on August 25, 1965. Today, Christ of the Abyss is one of the most famous and popular underwater sites in the only underwater park in the world. Information provided by Hetts.com
Just a short ride by boat. Make sure you take an underwater camera. The best bet is to follow a dive boat. Also make sure you do not throw out an anchor, you will need to tie u to the mooring balls.
Dive-Spots Information (Great Resource for Divers)