Related Research Articles
Trimix is a breathing gas consisting of oxygen, helium and nitrogen and is used in deep commercial diving, during the deep phase of dives carried out using technical diving techniques, and in advanced recreational diving.
SS Yongala was a passenger steamship that was built in England in 1903 for the Adelaide Steamship Company. She sank in a cyclone off the coast of Queensland in 1911, with the loss of all 122 passengers and crew aboard.
Technical diving is scuba diving that exceeds the agency-specified limits of recreational diving for non-professional purposes. Technical diving may expose the diver to hazards beyond those normally associated with recreational diving, and to a greater risk of serious injury or death. The risk may be reduced by appropriate skills, knowledge and experience, and by using suitable equipment and procedures. The skills may be developed through appropriate specialised training and experience. The equipment involves breathing gases other than air or standard nitrox mixtures, and multiple gas sources.
Deep diving is underwater diving to a depth beyond the norm accepted by the associated community. In some cases this is a prescribed limit established by an authority, while in others it is associated with a level of certification or training, and it may vary depending on whether the diving is recreational, technical or commercial. Nitrogen narcosis becomes a hazard below 30 metres (98 ft) and hypoxic breathing gas is required below 60 metres (200 ft) to lessen the risk of oxygen toxicity.
Wreck diving is recreational diving where the wreckage of ships, aircraft and other artificial structures are explored. The term is used mainly by recreational and technical divers. Professional divers, when diving on a shipwreck, generally refer to the specific task, such as salvage work, accident investigation or archaeological survey. Although most wreck dive sites are at shipwrecks, there is an increasing trend to scuttle retired ships to create artificial reef sites. Diving to crashed aircraft can also be considered wreck diving. The recreation of wreck diving makes no distinction as to how the vessel ended up on the bottom.
A diving support vessel is a ship that is used as a floating base for professional diving projects. Basic requirements are the ability to keep station accurately and reliably throughout a diving operation, often in close proximity to drilling or production platforms, for positioning to degrade slowly enough in deteriorating conditions to recover divers without excessive risk, and to carry the necessary support equipment for the mode of diving to be used.
A dive boat is a boat that recreational divers or professional scuba divers use to reach a dive site which they could not conveniently reach by swimming from the shore. Dive boats may be propelled by wind or muscle power, but are usually powered by internal combustion engines. Some features, like convenient access from the water, are common to all dive boats, while others depend on the specific application or region where they are used. The vessel may be extensively modified to make it fit for purpose, or may be used without much adaptation if it is already usable.
Salvage diving is the diving work associated with the recovery of all or part of ships, their cargoes, aircraft, and other vehicles and structures which have sunk or fallen into water. In the case of ships it may also refer to repair work done to make an abandoned or distressed but still floating vessel more suitable for towing or propulsion under its own power. The recreational/technical activity known as wreck diving is generally not considered salvage work, though some recovery of artifacts may be done by recreational divers.
German submarine U-701 was a Type VIIC U-boat built for the Nazi Germany's Kriegsmarine that served in the North Atlantic during World War II. It was launched on 16 April 1941 under the command of Kapitänleutnant Horst Degen, with a crew of 43.
Wreck Alley is an area a few miles off the coast of Mission Beach, San Diego, California with several ships intentionally sunk as artificial reefs and as Scuba diving attractions for wreck divers.
Sinking ships for wreck diving sites is the practice of scuttling old ships to produce artificial reefs suitable for wreck diving, to benefit from commercial revenues from recreational diving of the shipwreck, or to produce a diver training site.
In underwater diving, ascending and descending is done using strict protocols to avoid problems caused by the changes in ambient pressure and the hazards of obstacles near the surface such as collision with vessels. Diver certification and accreditation organisations place importance on these protocols early in their diver training programmes. Ascent and descent are historically the times when divers are injured most often when failing to follow appropriate procedure.
SS Binnendijk was a Holland America Line (NASM) cargo steamship. She was one of NASM's "B" class ships: the company's first cargo ships to be powered by steam turbines. Binnendijk was built in South Holland in 1921, and sunk by a mine in the English Channel in 1939. She was the first ship that NASM lost in the Second World War. Her wreck off the coast of Dorset, England is now a wreck diving site, nicknamed "The Benny".
Constandis was a fishing vessel sunk for use as a recreational dive site in Limassol Bay, Cyprus.
The following index is provided as an overview of and topical guide to Wikipedia's articles on recreational dive sites. The level of coverage may vary:
Recreational dive sites are specific places that recreational scuba divers go to enjoy the underwater environment or for training purposes. They include technical diving sites beyond the range generally accepted for recreational diving. In this context all diving done for recreational purposes is included. Professional diving tends to be done where the job is, and with the exception of diver training and leading groups of recreational divers, does not generally occur at specific sites chosen for their easy access, pleasant conditions or interesting features.
Kizugawa Maru, or Kitsugawa Maru, is a World War II-era Japanese water tanker sunk in Apra Harbor, Guam. Damaged by a submarine torpedo attack off Guam on April 8, 1944, she was towed into port for repairs. In port, she was further damaged in three separate U.S. air attacks during the Mariana and Palau Islands campaign. Deemed irreparable, Kizugawa Maru was scuttled by shore guns on June 27, 1944. The shipwreck is now a deep recreational diving site.
References
- 1 2 "Artificial reef heralds 'new era' for Cyprus diving (Archived copy)". Sport Diver. Archived from the original on 2015-04-02. Retrieved 2015-03-05.
Shipwrecks and maritime incidents in 2014 | |
|---|---|
| Shipwrecks |
|
| Other incidents |
|
