Gordon Rocks, a formation made up of a large volcanic crater, is another highlight on the island of Santa Cruz. Large groups of spotted eagle rays, hammerheads, and Galapagos shark are very common in this area. Conditions here can be exhilarating when strong currents are present, but even when the waters are calm, Gordon Rocks offers many spectacular marine encounters. This rocky formation is made up of a massive volcanic crater, about 300 feet across. You can dive on all sides of the crescent shaped rocks on both the inside and the outside. In the center of the crater the depth gets to about 150 feet but there is a pinnacle that rises up to 65 feet that makes a home for lobsters, eels and every kind of fish.