Cave diving

Cave diving is an unusual sport which involves underwater diving in caves with at least partial water content. Besides the use of regular scuba equipment in specialized configurations, it uses a varied range of equipment, depending on the circumstances. Major hazards of this sport are caused my lighting failure and low visibility, which can lead to separation from the partner. Air loss is another peril, especially because one can t just rise to the surface to catch air, or he might smash his head.