North Stack North Stack North Stack (Welsh: Ynys Arw, meaning "rugged island") is a small island situated just off Holy Island on the north-west coast of Anglesey. North Stack can also refer to the headland opposite the island. This is the site of a redundant fog warning station, comprising a number of buildings, including the Trinity House Magazine, built in 1861, where shells for the warning cannon were stored. These buildings now house a bird watching observatory, giving a view of South Stack lighthouse across Gogarth Bay, and the studio of artist Philippa Jacobs. The Precambrian quartzite cliffs of this headland, including
Bouvet Island including a number of small rocks and skerries and one sizable island, Larsøya. It is located in the Subantarctic, south of the Antarctic Convergence, which, by some definitions, would place the island in the Southern Ocean. Bouvet Island is the most remote island in the world. The closest land is Queen Maud Land of Antarctica, which is to the south, and Gough Island, to the north. The closest inhabited location is Tristan da Cunha island, to the northwest. Nyrøysa is a terrace located on the north-west coast of the island. Created by a rock slide sometime between 1955 and 1957,