Everyone knows what a submarine is - a ship that can go underwater. Hardly needs any explanation. Unless you're in the US Navy. By the Navy definition, only their modern, nuclear-powered boats ( all submarines are called "boats" ) are true submarines, designed to operate beneath the surface almost indefinitely. Anything else is merely a "submersible", tied to the surface by the need for fuel and air. Whatever.
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The U-151 was the first German U-boat to operate in U.S. territory in World War I. The U-151 is not actually sunk in these waters ( it was sunk deep off Virginia after the war, ) but it did "contribute" the following six shipwrecks, all on the same day, Sunday, June 2, 1918:
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Fins come in a bewildering assortment of designs. Options include long, short, vented, solid, soft, hard, open-heel, full-foot, and a wide range of specious do-dads, most of which solve problems that I cannot confirm even exist. One manufacturer has even come out with fins that are left and right, something that I think must be truly bothersome while gearing up.
The fact is, most fin designs simply miss the mark for New Jersey divers. What is needed here is a solid, tough fin with a generous foot pocket that will hold not just your foot, but also whatever bulky thing your foot is in. This will be at least a 6mm booty, if not a drysuit boot with perhaps several pairs of socks underneath. Simple solid buckles with quick releases are essential. You will be amazed at how strongly your fins may stick onto your feet at the end of a dive. Small vents in the toe of the foot pocket help here, to break the vacuum.
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