Blå Jungfrun, or "Blåkulla", is a Swedish island in the Baltic Sea. More precisely, it is situated in Kalmar Strait, between the provinces Småland and Öland. Administratively, it belongs to the municipality Oskarshamn. It is uninhabited and has an area of only about 0.7 km², though it rises 86 metres above sea level. Since 1926, it is one of the national parks of Sweden. As a national park, there are important limitations to the Everyman's right at Blå Jungfrun. For example, you are not allowed to make up a fire or spend the night on the island.

• http://en.wikipedia.org/wiki/Blå Jungfrun National Park