Karl XII, the Underworld’s Couriers and Spies
Join us on a journey through an archipelago where history has never truly fallen silent,
and where every wave carries a story you won’t want to miss.

Come along and get the story of the smuggler king Bremer and his adventures in our archipelago.
How he evaded the customs and conned them due to our dangerous waters.

Explore the unique world of sustainable fishing in Kosterhavet


In the heart of Kosterhavet, you’ll discover not only the beauty of nature but also the dedicated work of fishermen striving to preserve the prawn stocks and create a sustainable future. Over the decades, they have developed innovative and selective gear to ensure a fishery that respects the sea’s resources.

Join us on an archipelago experience that is as educational as it is magical—an encounter with a living tradition where only the amount of prawns that can be sold are brought up. Here, sustainability is a way of life and every detail is carefully considered.

Ramsö - A paradise island that few are lucky enough to discover.
A small and fabulously beautiful island in the southernmost part of the Kosterarchipelago.

Come in the Koster waltz....
A song written by Göran Svenning & David Hellström in Strömstad

The costar sea with all its mystique and its richness. The nature and the archipelago are absolutely stunning.
We visit both Kosters and Ursholmen, Sweden's westernmost lighthouse.

Is a perfect tour when you have guests you want to show the archipelago
or if the family wants a joint activity such as a break from bathing.

In the Koster Sea, the fishermen themselves have been involved in developing tools for sustainable fishing.
They protect the shrimp stock and have for many years developed selective tools themselves.
Come along and see how they fish only the quantity that can be sold and how they protect sustainable fishing!