The water is very rough, with many ships lost in the 19th century. A lighthouse was built on Deal Island in 1848 to help ships in the eastern part of the Straits. On the west, the Cape Otway Lighthouse was first lit in 1848. Another lighthouse was at Cape Wickham at the northern end of King Island in 1861.
There are over 50 islands in Bass Strait. Major islands include:
South eastern section:
North eastern section: