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
Underwater habitat of with a hatch depth of . The lagoon contains artifacts and wrecks placed there for education and training. From 1993 to 1995, NASA used MarineLab repeatedly to study Controlled Ecological Life Support Systems (CELLS). These education and research programs qualify MarineLab as the world’s most extensively used habitat. MarineLab is also used as an underwater laboratory for excursions and underwater laboratory training for recreational and sport divers who stay under the sea at the Jules' Undersea Lodge. MarineLab is currently located next to the Jules' Undersea Lodge, which is actually the La Chalupa Research Laboratory converted into a luxury