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Most underwater diving is done in the shallower coastal parts of the oceans, and inland bodies of fresh water, including lakes, dams, quarries, rivers, springs, flooded caves, reservoirs, tanks, swimming pools, and canals, but may also be done in large bore ducting and sewers, power station cooling systems, cargo and ballast tanks of ships, and ...
Most underwater diving is done in the shallower coastal parts of the oceans, and inland bodies of fresh water, including lakes, dams, quarries, rivers, springs, flooded caves, reservoirs, tanks, swimming pools, and canals, but may also be done in large bore ducting and sewers, power station cooling systems, cargo and ballast tanks of ships, and ...
Excessive rotation of a reel or spool by inertia, causing the line to unwind beyond the amount paid out, and lie in loose coils on the spool which can jam or tangle. overweighting. See also: diving heavy. Carrying more ballast weight than is necessary to achieve neutral buoyancy at all times during a dive.
SS Maori – Shoreline historical wreck in Leeugat Bay on the Cape Peninsula west coast; Marguerite – French ship sunk in Lyme Bay in 1917. Now a dive site; SMS Markgraf – Battleship of the German Imperial Navy; SS Mauna Loa – American cargo ship; USAT Meigs – United States Army transport ship sunk in Darwin Harbour
Oyster castle reef, Gandy's Beach shoreline protection project [42] Some artificial reefs are used to prevent coastal erosion. [43] [44] Geometric and hydrodynamic properties of reefs are particularly important in determining their ability to mitigate coastal erosion. [45] [46] Artificial reefs to prevent erosion can be designed to act in ...
SS Maori – Shoreline historical wreck in Leeugat Bay on the Cape Peninsula west coast; Marguerite – French ship sunk in Lyme Bay in 1917. Now a dive site; Maritime Heritage Trail – Battle of Saipan – A group of WWII wrecks in the lagoon at Saipan in the Northern Mariana Islands; SMS Markgraf – German battleship scuttled in Scapa Flow
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 ...
Fishing equipment: rods, reels, tackle boxes, depth finders, and artificial lures and flies... 5.3 Auxiliary equipment: camping equipment, binoculars, and special fishing clothing... 0.8 Special equipment: boats, vans, and cabins... 13.2 Equipment, total 18.8 Magazines, books 0.1 Membership dues and contributions 0.2