Sweden's national parks

On land and below the surface

Sweden’s first marine national park in the Baltic Sea preserves a varied marine and archipelago landscape in an essentially unchanged state.

Established

2025

County

Stockholm

About Nämdöskärgården National Park

Sit down and take in the view of the archipelago. See the islands, the water and, in the distance, the horizon. You might spot a white‑tailed eagle soaring above, or a pair of swans resting in a sheltered bay. Look beneath the surface of the Baltic Sea’s brackish water. On the shallow seabeds of the bays, or on the deeper mussel beds, you’ll discover another world full of life.

Nämdöskärgården National Park is Sweden’s first marine national park in the Baltic Sea, located in the Stockholm archipelago.

The marine area in the national park is rich in variation, with large differences in depth, wave exposure and different types of seabeds. The land area is spread across around a thousand islands, islets and skerries. The main entrance to the national park is on the island Bullerö.

When the national park was established in 2025, there were two nature reserves in the area: Bullerö and Långviksskär nature reserves. A smaller area on Långviksskär remains as a nature reserve, surrounded by the national park.

Ninety‑seven percent of the national park’s area is sea.