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Silfra fissure The Mid-Atlantic Ridge passing through Þingvellir Rocks and boulders that have piled up in the fissure due to earthquakes.. Silfra (Icelandic pronunciation: [ˈsɪl(v)ra]) is a rift formed in the Mid-Atlantic Ridge – the divergent tectonic boundary between the North American and Eurasian plates – and is located in the Þingvallavatn Lake in the Þingvellir National Park in ...
Snorkeling in the Silfra canyon. Scuba diver in the Silfra. The Alþingi (assembly) at Þingvellir was Iceland's supreme legislative and judicial authority from its establishment in 930 until 1271. The Lögberg or Law Rock was the focal point of the Alþingi and a natural platform for holding speeches. The Lawspeaker, elected for three years at ...
There may also be indirect positive effects as the environment is recognised by the local communities to be worth more in good condition than degraded by inappropriate use, and conservation efforts get support from dive communities who promote environmental awareness, and teach low impact diving and the importance of respecting marine life ...
The term dive site (from "dive" and "site", meaning "the place, scene, or point of an occurrence or event" [1]) is used differently depending on context.In professional diving in some regions it may refer to the surface worksite from which the diving operation is supported and controlled by the diving supervisor.
A snorkel is used to allow the user to breathe atmospheric air when their face is immersed in water while swimming or floating at the surface. [1] To work effectively, the snorkel must allow the user to inhale and exhale comfortably over an extended period, and provide a sufficient volume of air with appropriate oxygen and carbon dioxide content to maintain a sufficient and comfortable ...
MS Zenobia was a Swedish-built Challenger-class RO-RO ferry launched in 1979 that capsized and sank in the Mediterranean Sea, close to Larnaca, Cyprus, in June 1980. [1] [4] She now rests on her port side in approximately 42 meters (138 ft) of water and was named by The Times, and many others, as one of the top ten wreck diving sites in the world.
Since the depth of a snuba dive is limited by the length of the hose to about 6 metres (20 ft), decompression sickness is unlikely to be a problem. [15] However, as the snuba diver is breathing compressed air there is still a risk of injury or death due to barotrauma , which is a more severe hazard at shallow depths if divers ascend as little ...
Bog snorkelling is a sporting event where competitors aim to complete two consecutive lengths of a 60 yards (55 m) water-filled trench cut through a peat bog in the shortest time possible, wearing traditional snorkel, diving mask and flippers. They complete the course without swimming, relying on flipper power alone.