Carlsten FortressIn 1658

At the top of Marstrand Island is Carlsten Fortress. For more than 300 years, the mighty guardian has protected the small wooden town below. Today, the fortress is a captivating experience to visit and a memory for life.

Open all year round

Spend the night at Carlsten Fortress

The strong walls of Carlsten Fortress wrap their safe arms around the Keep and the Commander's House. In these 18th and 19th century buildings, you'll spend the night in the Soldathotellet's charming rooms, just as thousands of soldiers have done over the years.

Conference in a captivating environment

Set your conference in a completely unique setting with an exciting atmosphere and historic meals you will never forget. We will custom design a total experience with activities, games and fun based on your requirements.

Opening hours & guided tours

Read about the fortress' opening hours, entrance fees and guided tours at different times of the year.

Getting here

Carlsten Fortress is located on the island of Marstrand about 45 kilometres northwest of Gothenburg. You can get there by car, bus or boat. As car traffic is prohibited on Marstrandsön, you must take the passenger ferry from Koön to Marstrandsön. The ferry crossing only takes a few minutes.