Special Operations: Submerged Record.
<p>On May 10, 1960, U.S.S. Triton (SSRN 586) surfaced off the Delaware coast, having completed a submerged circumnavigation of the earth in 84 days. Following many of the routes taken by Magellan, Triton cruised 46,000 miles and set an endurance record which is expected to last for some time.
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Above is the course followed by U.S.S. Triton (SSRN-586), world’s largest submarine, on her shakedown cruise in which she circumnavigated the globe submerged.
U.S. Department of the Navy
<a rel="nofollow" class="external text" href="https://babel.hathitrust.org/cgi/pt?id=msu.31293021157007;view=1up;seq=243">Annual Report of the Secretary of the Navy. July 1, 1959 to June 30, 1960</a>, Page 235, Figure 1. Course followed by U.S.S. Triton (SSRN-586)