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MS Explorer became the first cruise ship to sink in the Southern Ocean.

Historical image related to MS Explorer became the first cruise ship to sink in the Southern Ocean. from November 23, 2007

MV Explorer (1969)

Antarctic Ocean cruise ship, sunk in 2007

MS Explorer or MV Explorer was a Liberian-registered cruise ship, the first vessel of that kind used specifically to sail the icy waters of the Antarctic Ocean. She was the first cruise ship to sink there, after striking an iceberg on 23 November 2007. All passengers and crew…
Source: Wikipedia (CC BY-SA)

Cruise ship

Passengers ship used for pleasure voyages

Cruise ships are large passenger ships used mainly for vacationing. Unlike ocean liners, which are used for transport, cruise ships typically embark on round-trip voyages to various ports of call, where passengers may go on tours known as "shore excursions".
Source: Wikipedia (CC BY-SA)

Southern Ocean

Ocean around Antarctica

The Southern Ocean, also known as the Antarctic Ocean, comprises the southernmost waters of the world ocean, generally taken to be south of 60° S latitude and encircling Antarctica. With a size of 21,960,000 km2 (8,480,000 sq mi), it is the second-smallest of the five principal…
Source: Wikipedia (CC BY-SA)