In the year 2000 the High Coast in Sweden was inscribed as a World Heritage site and in 2006 the site was extended to Finland. So far I only have the Finnish side
This postcard was sent by Sini
Kvarken is the narrow region in the Gulf of Bothnia separating the Bothnian Bay (the inner part of the gulf) from the Bothnian Sea.
On the Finnish side of Kvarken, there is a large archipelago, the Kvarken Archipelago, which includes the large islands Replot, Björkö and a large number of smaller islands. - in: wikipedia