Search results
Results from the WOW.Com Content Network
The advantages of referral are that the learner diver can complete the theory and confined water training near home, which should be more economical in time and cost, and there is a longer time available for learning the information, with less time pressure and vacation activity distraction, [7] then get the open water training in a vacation environment, where the water conditions are likely ...
Nav finder and underwater compass – basic underwater navigation tools Suunto SK-7 diving compass in aftermarket wrist mount with bungee straps. Diver navigation, termed "underwater navigation" by scuba divers, [1] is a set of techniques—including observing natural features, the use of a compass, and surface observations—that divers use to navigate underwater.
Scuba has limitations of breathing gas supply, communications between diver and surface are problematic, the location of the diver may be difficult to monitor, and it is considered a higher-risk mode of diving in most circumstances. Scuba is specifically forbidden for some professional applications.
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.
In commercial diving in general, and offshore diving in particular, a bounce dive is any surface oriented dive, in which the diver is decompressed to surface pressure at the end of the dive and does not transfer to a hyperbaric habitat where the diver lives at pressure between dives and only decompresses at the end of a tour of duty. The ...
Vertical position relative to the surface, also known as depth measurement, may use: Depth gauges (using pressure as a proxy) Dive computers (using pressure as a proxy) Measuring tapes (direct linear measurement) Pneumofathometers (using pressure as a proxy) Length measurement in other directions, using: Measuring tape, Surveyor's chain,
Recreational cave diving is generally considered to be a type of technical diving due to the lack of a free surface during large parts of the dive, and often involves decompression. A distinction is made by recreational diver training agencies between cave diving and cavern diving, where cavern diving is deemed to be diving in those parts of a ...
Scuba-diving has become a popular leisure activity, and many diving destinations have some form of dive shop presence that can offer air fills, equipment sale, rental and repair, and training. In tropical and sub-tropical parts of the world, there is a large market for 'holiday divers'; people who train and dive while on holiday, but rarely ...