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A dive log is a record of the diving history of an underwater diver. The log may either be in a book, locally hosted software , or web based. The log serves purposes both related to safety and personal records.
In skydiving, a logbook serves as a parachutist's personal history in the sport and also serves as an identifying document. It also provides drop zones proof to back one's skydiving licenses, ratings and currency. [citation needed] In scuba diving, the dive log documents the experience of a diver by logging a diver's dives.
Dive profile of an actual dive as recorded by a personal dive computer and displayed on a desktop screen using dive logging software. In this case depth is in metres. Personal dive computer display of dive profile and log data. A dive profile is a description of a diver's pressure exposure over
The lake is also used for scuba diving courses by Oyster Diving, a PADI Dive Centre. There are facilities for setting up equipment, hiring equipment and having guided dives. The lake is up to 15m deep, and contains the remains of the front of a Cessna plane, other sunken attractions and an underwater forest. [4]
A diving mask (also half mask, dive mask or scuba mask) is an item of diving equipment that allows underwater divers, including scuba divers, free-divers, and snorkelers, to see clearly underwater. Surface supplied divers usually use a full face mask or diving helmet , but in some systems the half mask may be used.
Specialised techniques and equipment have been developed for various types of aquatic environments and target fish. Spearfishing may be done using free-diving, snorkelling or scuba diving techniques. [55] Abalone, lobster, sea urchins and various other marine invertebrates can be collected by hand or with the assistance of hand tools while diving.
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The history of scuba diving is closely linked with the history of scuba equipment.By the turn of the twentieth century, two basic architectures for underwater breathing apparatus had been pioneered; open-circuit surface supplied equipment where the diver's exhaled gas is vented directly into the water, and closed-circuit breathing apparatus where the diver's carbon dioxide is filtered from ...