Cave diving can be a thrilling adventure. The sport entails diving into both natural as well as man-made caves. This form of technical diving requires special training and sometimes even special equipment. With great risk, comes great reward and this certainly holds true for cave diving. Diving in these environments gives access to unique animals like blind fish and salamanders that exist nowhere else on earth. Options abound for cave diving but many people first practice in places like Nemo 33, a diving pool in Uccle, Belgium or The Valhalla Missile Silo in Abilene, Texas. For those looking for more adventure in natural caves, Blue Hole at Lighthouse Reef in Belize, Cenote Esquelito in Tulum, Mexico, The Devil’s Cave System in Ginnie Springs, Florida, all provide some of the best and most interesting locations available. A mention about the Red Sea’s Blue Hole in the East Sinai Peninsula of Egypt near Dahab, only because it exists, though it has a deadly past. Only those with the highest levels of training and experience should attempt cave diving but, for those that do, it can quickly become an addicting pastime similar to other thrill seeking sports.