Welcome to Sweden’s first marine national park.
You can reach the main entrance to the national park, on South Koster, by one of the Västtrafik ferries from Strömstad. The trip takes about 45 minutes. Free entrance.
See certified activities that aim to offer better experiences and sustainable future. Here you also will find restaurants certified by Västsvenska Mersmak.
Strömstad and the nationalpark offer lots of fun activities for children of all ages. Fish for crabs, cycle on the Koster Islands, go on a seal safari, or visit popular attractions such as naturum Kosterhavet and the Tjärnö Aquarium, where you can learn more about life beneath the surface.
Are you thinking of taking the family to the archipelago paradise on the border and wondering what you can do there? Here are some tips for a three-day experience in Kosterhavet and Ytre Hvaler national parks.
As a traveller at sea, you can contribute to preserving the Parks’ valuable nature for the future! Download the folder Cast off on nature´s terms - a guide with lots of useful information for anyone visiting the Park.
Discover a fantastic part of the Bohuslän archipelago on two wheels. You’ll see small fishing villages surrounded by an amazingly beautiful landscape in Kosterhavet sea.
If you are in the town of Strömstad you should take the boat out to the Koster islands. On South Koster island there is a small network of bicycle-friendly paths that are mostly car-free and run alongside walking paths.