Three Hummock Island is an island with an area of 70 km2 and a high point 237 m above sea-level, in Bass Strait, south-eastern Australia. It is part of Tasmania’s Hunter Island Group which lies between north-west Tasmania and King Island.
The island is named after its three most prominent hills, North, Middle and South Hummock; the latter being the highest. It is located near Hunter Island near the north-west coast of Tasmania. Part of the island is a nature reserve, with the rest a pastoral lease where farming took place from the mid 1800s to at least the mid 1970s. The focus of human settlement on the island is the homestead at Chimney Corner at the westernmost point. There is an automated lighthouse at Cape Rochon in the north-east
Bears Island is a small island with an area of 0.34 ha, lying off the north-west tip of Three Hummock Island in Bass Strait, south-eastern Australia. It is part of Tasmania’s Hunter Island Group which lies between north-west Tasmania and King Island