Two boats lie ashore on the North shore of South Koster Island (Sydkoster) with a view of the North Koster Island (Nordkoster) in Sweden.

© UllrichG/Shutterstock

Koster Islands


Boat trips run from Strömstad’s north harbour to the beautiful cluster of forested Koster Islands every 30 minutes from July to mid-August, less frequently at other times. Tiny North Koster is hilly and has good beaches. Larger South Koster is flatter and better for cycling, with bike-rental facilities, numerous restaurants scattered about and two large beaches at Rörvik and Kilesand. Trips are booked through the tourist office.

Lonely Planet's must-see attractions

Nearby Bohuslän attractions

1. Strömstads Museum


Housed in an old power station, this museum displays local photography and objects from nautical history.

2. Skee Kyrka

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Open by appointment only (contact the tourist office), the Romanesque stone Skee Kyrka is about 6km east of Strömstad and has a 10th-century nave. There’s…

3. Kirkøy Stone Church

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This mid-11th-century stone church is one of the oldest in Norway. It hosts a week-long music and arts festival in July.

4. Stone-Ship Settings

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One of Sweden’s largest, most magnificent stone-ship settings (an oval of stones, shaped like a boat) lies 6km northeast of Strömstad. There are 49 stones…

5. Vitlycke Museum

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If you’re bewildered by the long-armed men, sexual imagery and goat-drawn chariots of Bohuslän's prolific Bronze Age rock carvings, drop by Vitlycke…

6. Rød Herregård

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Dating from at least 1690, Rød Herregård manor has fine interiors, which include notable collections of both weapons and art, as well as the mounted heads…

7. Fredriksten Fortress & Museums

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8. Kongsten Festning

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On what was once called 'Gallows Hill' stands the flower-festooned Kongsten Festning. Dating from 1685, it once served as a lookout and warning post for…