Blå Jungfrun is an uninhabited island in the middle of the Kalmar Strait between Oskarshamn and Öland. For seafarers it used to be a mythical island that was sometimes called Blåkulla (the Brocken), and according to the myth this is where the witches flew on Maundy Thursday to celebrate Whiches' sabbath. SInce 1926 the island is a national park and it consists of ruddy, bare, ice-polished granite cliffs as well as large boulder fields. The cliffs are pleasantly smooth and even and very beautiful. The island is only one kilometre in diametre, but still displays sharp contrasts. There is no harbour at Blå Jungfrun and it is difficult to moor there, but in calm weather day-tours are arranged from both Oskarshamn on the coast, and Byxelkrok on Öland.