59°24′11″N 18°21′35″E / 59.40306°N 18.35972°E
Vaxholm Fortress (Swedish: Vaxholms fästning), also known as Vaxholm Castle, is a historic fortification on the island of Vaxholmen in the Stockholm archipelago just east of the Swedish town of Vaxholm. It is home to the Vaxholm Fortress Museum . The fortress is accessed by the Kastellet ferry, an electrically powered cable ferry across the channel from Vaxholm town.
In 1970, the fortress was used as a movie location for the pirate stronghold in Pippi in the South Seas. A scenic view of the fortress may be seen from the car ferry which plies the short distance between Vaxholm and the island of Rindö.