Sanko Harvest was a 32,502 DWT dry bulk carrier that sank off Esperance, Western Australia after striking a charted reef on 14 February 1991. The Korean-crewed Japanese-owned ship was 174 metres (571 ft) long and was carrying a cargo of 32,790 tonnes of phosphate fertilizer valued at A$8.9 million (2019: A$17.3 million). Also on board were 677 tonnes of heavy bunker fuel and 40 tonnes of light diesel oil. The wreck site is the second largest wreck dive in the world and the largest off the Australian coast.