The Fujikawa Maru was originally built in 1938 for the Toyo Kaiun Kisen Kaisha and was requisitioned by the Imperial Japanese Navy during World War II for use as an armed aircraft transport or ferry.
She was sunk in Truk Lagoon during Operation Hailstone and is now a leading wreck diving site for scuba divers.
The Fujikawa Maru was requisitioned in 1940 by the Japanese Navy, and was based in Indo-China under the command of the 11th Fleet. She saw service in the Battle of Midway as part of AiRon 7. On 12 September 1943 she was hit by a torpedo fired by the U.S. Submarine Permit, and returned to Japan for repairs. Subsequently on 5 December 1943 she was hit by torpedo bombers from the USS Yorktown suffering minor damage. From thence she was taken to Truk Lagoon to undergo repairs.
On 17–18 February 1944 she was hit repeatedly by US bombers and torpedo bombers as part of Operation Hailstone, before she finally sank on 18 February at approximately 7.15am.