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Also: spring or resurgence. Cave where water flows out of the entrance used for diving. The flow will generally help divers on the way out. sink See: sink A cave where water flows into the entrance used for diving, which can hinder divers from getting out. sump See: sump A locally low-lying water filled passage of a cave. A cave may have several sumps separated by unflooded or partially ...
A cave diver running a reel with guide line into the overhead environment. Cave diving is underwater diving in water-filled caves.The equipment used varies depending on the circumstances, and ranges from breath hold to surface supplied, but almost all cave diving is done using scuba equipment, often in specialised configurations with redundancies such as sidemount or backmounted twinset.
It features many of the real-life cave divers as themselves. [248] 2019: 13 Lost: The Untold Story of the Thai Cave Rescue [citation needed] 2021: The Rescue, a National Geographic documentary released on 8 October 2021. The film made use of body-cam footage recorded by the divers involved in the operation. [249]
The creation of an accurate, detailed map is one of the most common technical activities undertaken within a cave. Cave maps, called surveys, can be used to compare caves to each other by length, depth and volume, may reveal clues on speleogenesis, provide a spatial reference for further scientific study, and assist visitors with route-finding.
Jill Heinerth (born 1965) is a Canadian cave diver, underwater explorer, writer, photographer and film-maker. [3] She has made TV series for PBS, National Geographic Channel and the BBC, consulted on movies for directors including James Cameron, and written several books and produced documentaries, including We Are Water [4] and Ben's Vortex, about the disappearance of Ben McDaniel.
See also Cave diving. Sump (cave) – Passage in a cave that is submerged under water; Culvert – Structure to channel water past an obstacle; Dam – Barrier that stops or restricts the flow of surface or underground streams; Deep diving – Underwater diving to a depth beyond the norm accepted by the associated community
A cave survey is a map of all or part of a cave system, which may be produced to meet differing standards of accuracy depending on the cave conditions and equipment available underground. Cave surveying and cartography , i.e. the creation of an accurate, detailed map, is one of the most common technical activities undertaken within a cave and ...
Jill Yager is an American zoologist and cave diver. Yager's research is centered on the conservation of inland caves. She discovered a venomous crustacean species, and she also named its class. Yager was named Cave Scientist of the Year in 2000 and was inducted into the Women Divers Hall of Fame in 2000.