Kizugawa Maru (Japanese: 木津川丸, きづがわまる), or Kitsugawa Maruα, is a World War II-era Japanese water tanker sunk in Apra Harbor, Guam. Damaged by a submarine torpedo attack off Guam on April 8, 1944, she was towed into port for repairs. In port, she was further damaged in three separate U.S. air attacks during the Mariana and Palau Islands campaign. Deemed irreparable, Kizugawa Maru was scuttled by shore guns on June 27, 1944. The shipwreck is now a deep recreational diving site.
During the U.S. Mariana and Palau Islands campaign, Kizugawa Maru was further damaged during an air raid on 11 April, and again on 11 and 27 June. Declared beyond repair after the raid on the 27 June, she was scuttled by shore gunfire.[4][2] Due to her engine room flooding quickly, she sank straight down and sits upright in northern Apra Harbor.[7][8][9] About 80% intact, the wreck has an 8 cm/40 3rd Year Type naval gun[2] on her bow with three or four boxes of ammunition.[10] In 2007, researchers noted a large concrete block had crashed through the bow deck structure, apparently due to an mooring accident.[11]
Dive site
Kizugawa Maru is a deep recreational diving site, sometimes referred to as the Kitz. She is lauded as an "excellent wreck dive"[9] and a rival to "any that can be found on Truk."[8] The top of Kizugawa Maru's mast is at 60 feet (18 m), while the bow gun sits at 100 feet (30 m). Damage from six bombs is at 130 feet (40 m), with the silt bottom of the harbor at 140 feet (43 m). Due to the depth, recreational divers use Nitrox or are severely limited on the time available at the gun or deck in order to avoid incurring a decompression obligation.[10] Trained wreck divers considering penetration are further cautioned about plentiful silt, as well as twisted metal around the engine room and holds.[8] In October of 2023, a large vessel anchored on or near the Kitzugawa Maru, ripping the deck gun off of the deck, knocking the mast off and damaging the bow. The gun now sits in 137 feet of water, upside down, in the silt on her port side.
U.S. Navy divers measuring the deck gun in 1987 as part of Project Sea Mark for Navy historic sites
^α Commonly referred to in diving-related sources as "Kitsugawa Maru." Appears to be a result of a misreading of づ (-zu) for つ (-tsu). Presumed to be named after the river.