Underwater habitat cable wrapped around Dr. Lance Rennka's left wrist, shattering his arm, which he subsequently lost to gas gangrene. In the mid-1980s La Chalupa was transformed into Jules' Undersea Lodge in Key Largo, Florida. Jules' co-developer, Dr. Neil Monney, formerly served as Professor and Director of Ocean Engineering at the U.S. Naval Academy, and has extensive experience as a research scientist, aquanaut and designer of underwater habitats. Jules' has had over 10,000 overnight guests in its 30 years of operation. Today, many certified divers who are interested stay in the Jules' Underwater Lodge, and some who meet the skill and bottom
Geology of Puerto Rico Trough to the coast of Central America. Approximately 50 miles ESE of Fajardo, Puerto Rico, past the island of Vieques and approximately 20 miles south of Saint Thomas in the US Virgin Islands, can be found the Virgin Islands Trough, which in places exceeds 14,000 feet in depth. Geology of Puerto Rico Puerto Rico is composed of Jurassic to Eocene volcanic and plutonic rocks, which are overlain by younger Oligocene to recent carbonates and other sedimentary rocks. Most of the caverns and karst topography on the island occurs in the northern Oligocene to recent carbonates. The oldest rocks are approximately