Arholma

It is mentioned in the 13th century sailing route of King Valdemar, which describes a passage through the archipelago past Åland to Estonia (then occupied by the Danes).

During the winter months they anchored their vessels at Arholma's principal harbour, Österhamn, which was built during the island's peak of prosperity in the late 19th century.

When the shipping trade began to decline, a number of Arholma farmers converted their residences into pensions and the island became extremely popular with holidaymakers.

[1] During the 1930s, Arholma became part of Havsbandslinjen (Marine Band Line), a chain of fortifications constructed to protect the sea approaches to Stockholm.

It now owns a quarter of the island, using traditional methods of forestry and farming to conserve the natural environment, and has built a guest harbour at Ahlmansviken.