Kadettangen is a small peninsula outside of Sandvika in Bærum, Norway. Originally named Sandvikstangen, it got its current name from the cadet training conducted by the Norwegian Military Academy for the better part of the nineteenth century. The peninsula is now used mainly for boating, beach life and sports, being the home ground of association football club Bærum SK.
Geography and history 
It was formerly a crop field under Kjørbo manor, and was originally named Sandvikstangen. Some time between 1820 and 1825 the Norwegian Military Academy started using it as a bivouac camp for summer training of cadets, hence the name change. The Norwegian Military Academy bought the area in 1869, but by the 1890s it had become too small for military exercises. The Norwegian Military Academy left in 1896, and following a few years of use by His Majesty The King's Guard, it was rented by Bærum municipality from 1902, and finally bought in 1916. When the municipality took over, parts of Kadettangen was used as a playground; arenas for organized sport were later built. The military usage only returned briefly during the occupation of Norway by Nazi Germany, from 1940 to 1945.
The southern end of Kadettangen is now used for leisure purposes, with its beach and beach volleyball facilities. The beach was constructed in the 1930s. In addition, because of its low altitude and consequent problems with flooding, the peninsula was reinforced with fill dirt. The practice of filling around Kadettangen continues to this day, with proposals to increase the land area with leftover material from the excavation of the Løkkeås Tunnel as a part of Norwegian National Road 164.
The northern part of Kadettangen is used for sports. An artificial grass pitch with a tribune along the western sideline serves as the home ground of the football club Bærum SK. The attendance record is 1,819 people from a Norwegian Football Cup match in Norwegian Football Cup 2004, when Bærum SK beat Vålerenga in the third round. Their club room, raised in 1984, is located in an adjacent building which is shared with the athletics and orienteering club IL Tyrving. Bærum SK also has an indoor football arena, Bærumshallen, which is used for exhibitions and sales in addition to sports. The site of the indoor arena was used for three ice hockey matches at the 1952 Winter Olympics. Other former activities at the sports field are speed skating, bandy and speedway. In 2009, Bærum SK chairman Jan Erik Aalbu suggested that the sports field be renamed Sandvika stadion.
In addition, the rowing club Bærum RK, founded in 1917, moved its headquarters from Kalvøya to Kadettangen in 1925. It lasted until 1936, when they sold the headquarters due to financial problems, and relocated to the tiny islet Danmark. The locality was also used for revues.
Former mayor of Bærum, Gunnar Gravdahl (Conservative), has stated that the sports facilities should be removed and replaced with a public baths. His successor, sitting mayor and fellow party member Odd Reinsfelt denounced the idea, stating that there was no viable replacement location for the sporting activities.
Kadettangen is a starting point for island-hopping in the local section of the Oslofjord. The company Sandvika Fjordturer operates out of an office at Kadettangen, and its two ships, Rigmor and Rigfar, are in quay at the western shore of the peninsula. Since 1963 Kadettangen is also connected to the island Kalvøya by bridge. On the eastern shore, there is a calling port for medium-sized ships.
In terms of public transportation, Kadettangen is served by the lines 705 and 706 of the Ruter bus network; the bus station is named Sandvika rådhus. The proximate railway station is Sandvika. The European route E18 runs through Sandvika, more or less separating Kadettangen from the town.
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