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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 ...
Physical restraint from entering danger zone by way of limited umbilical length and underwater tending. Remain above chain at all times when near pinch zone if necessary to work in the area. Avoid diving near chains when weather conditions are likely to cause lifting. Avoid diving near chains in low visibility.
All divers are required to present proof of open-water certification and sign a release of liability. [9] Warning sign near the entrance to the cave. For the most experienced divers, the main attraction of Vortex Spring is the cave, which starts 300 feet (91 m) from the cavern, at a depth of 115 feet (35 m). [10]
A silt out or silt-out is a situation when underwater visibility is rapidly reduced to functional zero by disturbing fine particulate deposits on the bottom or other solid surfaces. This can happen in scuba and surface supplied diving , or in ROV and submersible operations, and is a more serious hazard for scuba diving in penetration situations ...
Cosquer Cave (, also) is located in the Calanque de Morgiou in Marseille, France, near Cap Morgiou. The entrance to the cave is located 37 m (121 ft) underwater, due to the Holocene sea level rise. The cave contains various prehistoric rock art engravings. Its submarine entrance was discovered in 1985 by Henri Cosquer, a professional diver.
Diving safety is the aspect of underwater diving operations and activities concerned with the safety of the participants. The safety of underwater diving depends on four factors: the environment, the equipment, behaviour of the individual diver and performance of the dive team.
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