Bouvet Island of establishing a manned meteorological radio station, but a suitable location could not be found. By then both the flagpole and hut from the previous year had been washed away. The Third "Norvegia" Expedition, led by Hjalmar Riiser-Larsen, arrived the following year and built a new hut at Kapp Circoncision and on Larsøya. The expedition carried out aerial photography of the island and was the first Antarctic expedition to use aircraft. The "Dependency Act", passed by the Parliament of Norway on 27 February 1930, established Bouvet Island as a dependency, along with Peter I Island and Queen Maud Land. The
Bouvet Island Kapp Fie. After rounding Kapp Fie, the coast along the south side is known as Vogtkysten. The westernmost part of it is the long shore of Sjøelefantstranda. Off Catoodden, on the south-western corner, lies Larsøya, the only island of any size off Bouvetøya. The western coast from Catoodden north to Nyrøysa, is known as Esmarchkysten. Midway up the coast lies Norvegiaodden (Kapp Norvegia) and off it the skerries of Bennskjæra. 93 percent of the island is covered by glaciers, giving it a domed shape. The summit region of the island is Wilhelmplatået, slightly to the west of the island's center.