Entering the crack in 25 ft of water, you proceed to dive to a depth of 80 ft before exiting. Calvin's Crack is a natural fissure in the geography of Roatan that makes for a spectacular dive. You can lose yourself searching for small inverts, or swimming through schools of fish on any given day. You don't even realize you are plunging deeper and deeper until referencing your gauges upon exit at about 80 ft. This is one of the most unique dives I've done in the Caribbean.