Bastøy is an unpopulated island in
Horten
is a town and municipality in Vestfold in Vestfold og Telemark county, Norway—located along the Oslofjord. The administrative centre of the municipality is the town of Horten. The municipality also includes the town of Åsgårdstrand an ...
municipality,
Norway
Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and t ...
.
Bastøy Prison, a minimum-security prison is located on the island.
Islands of Vestfold og Telemark
{{VestfoldTelemark-geo-stub