Advice for boat owners
The Swedish Armed Forces train and operate around the clock, all year, to defend Swedish territory and uphold Swedish interests. A large part of this activity takes place in the archipelago and at sea. Everyone navigating the archipelago must be considerate of others, and this also applies to the Armed Forces.
Photo: Jimmy Croona/Försvarsmakten
Special caution should be observed in the following areas where Armed Forces vessels frequently operate:
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Southern Stockholm Archipelago: primarily Hårsfjärden, Mysingen, and northwards towards Dalarö, Långbälingssund, Järnholmssund, and Gåsstensfjärden.
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Central Stockholm Archipelago: north and south of Björkö Kroksö, the area around Korsö, Träsköfjärden, and the area around Lådna Låren.
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Gryt and Valdemarsvik Archipelagos
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Northern Stockholm Archipelago: the area around Söderarm.
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Outer anchorage of Karlskrona
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Gothenburg Archipelago: primarily between Björkö and Tistlarna
Mutual consideration will help minimize wake damage.
Armed Forces Maritime Operations Centers
The Swedish Armed Forces Maritime Operations Center (MOC) is organized under the Navy Staff. The naval centers are located at Muskö and Gothenburg. They monitor VHF channel 16 around the clock and respond to phone and radio calls with “Sjöcentralen Muskö,” “Sjöcentralen Göteborg,” or “Swedish naval control,” etc.
The centers’ names, areas of responsibility along the Swedish coast, and phone numbers (direct lines) are as follows:
Contact Information
Swedish Armed Forces Maritime Operations Center (MOC)
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Area of responsibility: Whole country
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Phone: 010-823 63 00
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Email: marinstaben-vb@mil.se
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Area of responsibility: Gulf of Bothnia – Gotland – Southern Öland
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Phone: 010-823 18 23
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Email: marinb-sjocmusko@mil.se
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VHF channel 16 call sign: Sjöcentralen Muskö
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Area of responsibility: Southern Öland – Norwegian border
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Phone: 010-829 28 05
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Email: marinb-sjocgoteborg@mil.se
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VHF channel 16 call sign: Sjöövervakningen Göteborg
For those in the archipelago during winter
During winter, many people go out on the ice along the coasts and on inland lakes for activities such as ice skating or fishing. It is important to remember that both civilian and military shipping operate year-round along all of Sweden’s coasts. The Armed Forces provide guidance on how everyone can safely share the archipelago during the winter months.
Be aware of ice conditions
Around Armed Forces protected sites and training areas in the archipelago, activity continues year-round. This means that ice, even if unbroken, may be affected by nearby ships, hovercraft, or helicopters. Avoid staying on the ice near Armed Forces protected sites or training areas.
Risk of newly formed ice channels
To ensure that the Armed Forces maintain the mobility required to uphold readiness, ice channels may be broken with relatively short notice.
Special caution should therefore be observed in the areas around Sweden where Armed Forces vessels frequently operate.