The Belitung shipwreck[2] (also called the Tang shipwreck or Batu Hitam shipwreck) is the wreck of an Arabian dhow which sailed a route from Africa to China around 830 AD.[3] The ship completed the outward journey but sank on the return journey, approximately 1 mile (1.6 km) off the coast of Belitung Island, Indonesia. It is unclear why the ship was so far from its expected route back from China.[4] Belitung is to the south-east of the Singapore Strait by 380 miles (610 km), and this secondary route is more normal for ships travelling from the Java Sea, which is south of Belitung Island.[5]