Märket, Rocky islet in Sea of Åland, Finland and Sweden
Märket is a small rocky islet located in the Sea of Åland between Finland and Sweden. It measures approximately 350 meters long and 150 meters wide, with a maximum elevation of about 2 meters above sea level.
The division of this islet between Sweden and Finland originated in 1809 when Sweden lost Finland to Russia. This border arrangement defined the location's territorial status for the centuries that followed.
Radio enthusiasts use this islet during summer months to operate their equipment and make connections with operators across different countries. The location draws people interested in wireless communication who want to establish international links.
To visit this remote islet, guests need to arrange their own boat transportation, as no regular ferry services operate here. Weather and sea conditions can change quickly, so careful planning is essential.
In 1985, the border between Finland and Sweden was adjusted to ensure the lighthouse remained completely within Finnish territory. This unusual border correction demonstrates how international agreements are modified to protect specific geographic features.
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