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Extreme Cave Diving presents the thrills and spills of this intriguing extreme sport. The carefully written, considerate text will hold the readers' interest and allow for successful mastery and comprehension. Written with a high interest level to appeal to a more mature audience, these books maintain a lower level of complexity with clear visuals to help struggling readers along. A table of contents, glossary with simplified pronunciations, and index all enhance achievement and comprehension.

Cave divers are the elite, and this is their story--a story of pushing the limits of technology and human endurance.

Cave diving has been called the most dangerous sport. It doesn't have to be. With proper training, experience, and guidance, you can become a skilled cave diver, and enjoy this challenging and rewarding activity, for a lifetime. With decades of technical diving experience, including world record cave dives, and paradigm-changing underwater exploration, International Scuba Divers Hall of Fame inductee Jill Heinerth, has created this contemporary guide book. Generously illustrated, The Essentials of Cave Diving - 4th Edition contains practical, recently updated underwater knowledge, including sidemount techniques and the latest rebreather technology. Encompassing all levels of cave diving, from entry-level to expert, this manual is an essential tool, appropriate and relevant to all cave training disciplines.

Through all the ups and downs of life, the author has always been pushed toward cave diving. From childhood to the present time, he explains what has shaped and sharpened him for this activity, which is regarded as very hazardous and engaged. He explains how this nonpaid activity is linked with the other parts of his life. The emphasis is put not only on exploration, which is a very central element of caving and cave diving but also on ethical, social, technical, and scientific considerations. Doing things is presented as more important than having or being.

The Huautla in Mexico is the deepest cave in the Western Hemisphere, possibly the world. Shafts reach skyscraper-depths, caverns are stadium-sized, and sudden floods can drown divers in an instant. With a two-decade obsession, William Stone and his 44-member team entered the sinkhole at Sotano de San Augustin. The first camp settled 2,328 feet below ground in a cavern where headlamps couldn't even illuminate the walls and ceiling. The second camp teetered precariously above an underground canyon where two subterranean rivers collided. But beyond that lay the unknown territory -- a flooded corridor that had blocked all previous comers, claimed a diver's life, and drove the rest of the team back. Except for William Stone and Barbara am Ende, who forged on for 18 more days, with no hope of rescue, to set the record for the deepest cave dive in the Western Hemisphere.