the proyecto :: El Proyecto de Buceo Espeleologico Mxico y Amrica Central
El Proyecto de Buceo Espeleologico Mxico y Amrica Central [also known as 'Mexico Profundo'] was founded by Jim Bowden in 1982 to advance knowledge of water filled caves and related features in Mxico and Central America. Exploration includes mapping and surveying as well as a study of the geology, biology, and hydrology of each system. The Proyecto incorporates advanced and diverse underwater technologies including the creation and utilization of customized dive tables, computer technology, side scanning sonar, rebreather applications, and studies in hyperbaric medicine and physiology.
http://www.mexicoprofundo.org/