Canoes are widely used to transport people and goods in rivers and the ocean. Timber with particular characteristics is needed to construct the various parts of canoes, including hulls, outriggers and masts. Where this is not available locally, it is sometimes purchased from villagers in other locations. Making and selling canoes is a specialised activity on, for example, Panaeati and Gawa islands in Milne Bay Province. Large ocean-going canoes from these two islands are exported to nearby islands in south-east and north-east Milne Bay Province respectively.