Arch Rock is a sandstone islet, with an area of 0.44 ha and containing a natural arch, in south-eastern Australia.
It is part of the Partridge Island Group, lying close to the south-eastern coast of Tasmania, in the D'Entrecasteaux Channel between Bruny Island and the mainland.
[1][2] Recorded breeding seabird species are Pacific gull and kelp gull.
The metallic skink is present.
This Tasmania geography article is a stub.