The safety of fishermen and people in small boats is a continuing concern in terms of safety at sea. In the course of your voyages, you encounter many types of fishing operations from dug out canoes, with sometimes a candle or oil lantern, to large fishing/factory ships. In and around the Australian coast fishing vessels tend to be less than 20 m in length with a crew of two or three. They often exhibit very bright working lights, though these should be shielded in order to ensure that the fishing lights required by the Colregs can be seen clearly.