The islands belong to the Commune of Cabo de Hornos in Antártica Chilena Province of Magallanes and Antártica Chilena Region.

They lie 96 km (60 mi) west of Isla Hermite, part of Tierra del Fuego, and 93 km (58 mi) NNW of Diego Ramirez Islands, but only 27 km (17 mi) south of Isla Hoste or 23 km (14 mi) to rocks near Isla Hoste.

The islands were named by the Spanish navigator Diego Ramírez de Arellano, who piloted the Garcia de Nodal expedition through the region in 1619.

The islands are steep and rocky, and covered in tussac grass.

Magellanic penguins, imperial shags and sooty shearwaters present.