The passenger ferries depart according to the regular time-table. To ensure social distancing the ferries has a reduced passenger capacity. 

Additional ferries are put into service if needed. We kindly ask our passengers to respect other travellers and keep your distance to others both onboard and in the queue to the ferry.

Face masks are recommended when using public transport

Welcome aboard the ”Kosterbåtarna”

We operate passenger and cargo ferries to the Koster islands all year round.


The passenger ferries depart from the ”norra hamnen” in Strömstad at the main square (torget). Street adress Ångbåtskajen, Strömstad. Here you will also find a waiting room.

Due to a renovation of the quay the ferries has an alternative quay during the spring of 2021, 200m from our normal quay. Closest street adress is Norra Hamngatan 1. Please note that there is little room for cars close to the quay.

Nearby you also find the city tourist information, Strömstad infocenter. Check out their website HERE




Tickets can be bought onboard (card only) or in machines on the quay in Strömstad (card only). 

Prices vaild from november 2020 until further notice:

Youths (7-19 years) One way: SEK 62, return SEK 104 

Adults (20 years -)  One way: SEK 82, return SEK 136

Children 0-6 years are free of charge 

Buy your ticket with our app!

Download the «Västtrafik To Go» application to your phone!

The ticket is valid for a one way journey – but you get the round-trip discount.

Adult = 68kr

Youth 7-19 years = 51kr 

Search trip from ”Strömstad Norra Hamnen” to ”Koster” to find your ticket, right price = right ticket! (the ticket will be valid to any stop on both islands)  The app will remember your previous tickets which will make repeated voyages more convenient.

The ticket must be activated before departure and is valid for 180 minutes.  The deck-hand will validate the ticket during the journey. The telephone must be switched on and connected to the internet for the ticket to be valid!

Other questions?

For chartering or cargo ferries please contact the shipping company (Koster Marin AB) via email info@kostermarin.seor telephone +46 526 20 110