Tokai Maru

TOKAI MARU
U.S. National Register of Historic Places
Tokai Maru
Location	Apra Harbor
Coordinates	13°27′33″N 144°39′15″E / 13.45917°N 144.65417°E / 13.45917; 144.65417Coordinates: 13°27′33″N 144°39′15″E / 13.45917°N 144.65417°E / 13.45917; 144.65417
Area	less than one acre
Built by	Mitsubishi Heavy Industries Shipyard
Architectural style	Military transport
NRHP reference No.	88000967[1]
Added to NRHP	July 14, 1988

Wreck of Tokai Maru
Tokai Maru lies at the top of this National Park Service illustration. The drive shaft of Cormoran lies closest to the bottom of the Tokai. The buoy used by recreational scuba divers is marked.
Dive type	Open-water, Deep, Wreck
Depth range	60 to 120 ft (18 to 37 m)
Average visibility	25 to 40 ft (7.6 to 12.2 m)
Entry type	Boat, very rarely shore
Bottom composition	Metal, silt
Nearby sites	SMS Cormoran

The Tokai Maru was a Japanese passenger-cargo ship built by the Mitsubishi Heavy Industries shipyard that was sunk in Apra Harbor, Guam, in 1943, during World War II. It had served as a fast ship service between New York City and Japan for Osaka Shosen Co. before World War II; during the war it was used as a military transport ship for the Imperial Japanese Navy.

History[]

Construction by Mitsubishi Heavy Industries began in 1929, the ship was launched on May 16, 1930, construction was completed on August 14, 1930.^[2] Osaka Shosen Co., now Mitsui O.S.K. Lines, used her as a fast luxury freighter for Tokyo-New York City service through the Panama Canal. In July 1941, the United States closed the Panama Canal to Japanese shipping in retaliation for the Japanese invasion of French Indochina. Tokai Maru, on the eastern side of the Canal, was forced to sail back to Japan through the Strait of Magellan. The ship was then requisitioned as a war-time transport freighter, a class of ships known as Ippan Choyosen that were not officially part of the Imperial Japanese Navy and had civilian crews.^[3] The ship went under contract to the Japanese Navy at the Kure Naval Arsenal on October 17, 1941.^[2] She was tasked with transporting men and material throughout the Pacific. She would have been armed with 2x12cm guns, 2xtwin 25mm guns, and 2xsingle 25mm guns.^[3]

On January 24, 1943, USS Flying Fish spotted Tokai Maru in Apra Harbor, Guam, a U.S. territory then occupied by Japan. After waiting for three days for Tokai Maru to leave the harbor, Flying Fish fired two torpedoes at Tokai, running at 15-foot depth. One ran aground but the other struck Tokai, inflicting significant damage, but did not sink her.^[3] Seven months later, in August 1943, USS Snapper spotted Tokai Maru and another vessel moored in the northeast corner of Apra Harbor. She waited seven days for the Japanese ships to leave before sailing to the north of the harbor on August 27, 1943, and firing three torpedoes at the first target and one at the second. One torpedo hit Tokai's port side #3 cargo hold, sinking her directly on top of the wreck of SMS Cormoran II, a World War I German merchant raider.^[2][3]

The Tokai Maru shipwreck, 120 feet (37 m) under water, is listed on the U.S. National Register of Historic Places, as is the shipwreck of SMS Cormoran II, which it lies besides. It is one of the few places where divers can explore a World War I shipwreck next to a ship from World War II.^[4]

In 1988 the wreck was placed on the National Register of Historic Places^[1][2] because of its association with World War II.^[2]

References[]

See also[]

• Media related to Tokai Maru at Wikimedia Commons
• Foreign commerce and shipping of Empire of Japan
• Underwater diving on Guam

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