In which ocean is Inaccessible Island?

Inaccessible Island is an extinct volcano (last active six million years ago) with Cairn Peak reaching 449 m.

The island is 12.65 km2 (4.88 sq mi) in area, rising out of the South Atlantic Ocean 45 km (28 mi) south-west of Tristan da Cunha.

Inaccessible Island is fringed with sheer sea cliffs and only a few boulder beaches, which made generations of sailors wary of difficult landings and inhospitable terrain. It has been without permanent inhabitants since 1873.

The island is part of the archipelago of Tristan da Cunha which is part of the overseas territory of the United Kingdom known as Saint Helena, Ascension and Tristan da Cunha.

The Tristan da Cunha archipelago is the world's most remote inhabited archipelago as it is 2,400 kilometres (1,500 miles) from the nearest other inhabited land which is St. Helena. Tristan da Cunha itself is only accessible by sea via a seven-day sail from Cape Town, South Africa by landing during the 60 days of the year that the harbor allows for access to the island.

Along with Gough Island, Inaccessible Island is a protected wildlife reserve and both make up the UNESCO World Heritage Site of Gough and Inaccessible Islands.

Inaccessible Island is home to the endemic Inaccessible Island Rail, a small bird with brown plumage and a black bill and feet. It occupies most habitats on Inaccessible Island, from the beaches to the central plateau, feeding on a variety of small invertebrates and also some plant matter.