It protects beaches and lowlands and attracts tourists and other visitors who are able to scuba dive and snorkel in the protected marine area which contains the Coralline Reefs, as well as being a nesting ground for sea turtles.
The Leopard 2 tank carries a snorkel that is in fact a series of rings which can be stacked to create a long tube.
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The Germans gave their Tiger tank a long snorkel, essentially a long tube on the commander's hatch that allowed it to wade through four metres of water.
The shells of some genera, particularly Yochelcionella, also possessed a "snorkel"-like opening which was most likely used for breathing.
An early submarine snorkel was designed by James Richardson, an Assistant Manager at Scotts Shipbuilding and Engineering Company, Greenock, Scotland as early as 1916, during World War I.
In the spring of 2009 the automatic snorkel system was installed, so the submarine could sail submerged on diesel power, and in August 2009 the submarine sailed out from the Port of Køge submerged.