So named by United Kingdom Antarctic Place-Names Committee (UK-APC) in 1958 because of their exposed, isolated position on the south side of Bransfield Strait.

The islands are habitat for Adélie, chinstrap, and gentoo penguins.

[1] This article incorporates public domain material from "Wideopen Islands".

United States Geological Survey.

This Joinville Island group location article is a stub.