It lies about 8 kilometres (5.0 mi) south-east of Mount Pleasant Airport and 40 km south-west of Stanley.
It has been identified by BirdLife International as an Important Bird Area (IBA) because of its significancer for a variety of migratory waders and other waterbirds.
Overlapping it is the 4000 ha Bertha's Beach Ramsar site, recognising it as a wetland of international importance.
To the north-east of Bertha's Beach is a large area of coastal lowlands with islands and promontories, with kelp beds extending up to 4 km offshore.
[2][3] Some 77 species of flowering plants have been recorded from the Ramsar site, including the rare Dusen's moonwort.