The island is roughly crescent-shaped, and has an area of 2 km2 (0.77 sq mi).

Bollons Island is dominated by a curved ridge running the length of the island, with a highest point 202 metres (663 ft) above sea level.

The island is named after John Bollons, Master of the New Zealand Marine Department vessels, NZGSS Hinemoa and SS Tutanekai.

The island is part of the Antipodes Islands Important Bird Area (IBA), identified as such by BirdLife International because of the significance of the group as a breeding site for several species of seabirds.

This article about the geography of New Zealand's outlying islands is a stub.