Boat Trip to the Koster Islands with Selin Charter’s Koster Boats

Experience South Koster and North Koster – hiking, beaches and unique island nature

Join Selin Charter’s Koster boat on a boat trip to the Koster Islands and experience South Koster, North Koster and Kosterhavet from the sea. This trip is perfect if you want to make a day excursion in the Bohuslän archipelago near the Norwegian border, visit Naturum Kosterhavet and learn more about Sweden’s first marine national park – or discover the Koster Islands’ best beaches, hiking trails, cycling routes and unique coastal nature.

On South Koster, you will find lush surroundings, Naturum Kosterhavet, beaches and bike-friendly roads. North Koster offers cliffs, viewpoints and hiking in a more rugged outer archipelago landscape. Whether you want a calm island day, find the best hiking trails on the Koster Islands or combine your boat trip with a nature experience at sea, this is a safe and genuine way to experience some of the best islands on the Swedish West Coast.

Choose a classic boat trip to the Koster Islands or continue towards Ursholmen on a seal safari and experience Sweden’s westernmost lighthouse site. With Selin Charter’s local knowledge, guided boat tours to Koster and well-known Koster boats, you get to experience the sea, the islands and the outer archipelago of Kosterhavet up close. 

Boat Trip to the Koster Islands
Travel Information, Prices and Departures from Strömstad and Resö

The Koster Islands from Strömstad

  • Experience: The Koster Islands
  • Departure point: Strömstad, Norra Hamnen
  • Departure time: Kl 10:00
  • Tour day: Tuesday, Thursday, Saturday
  • Pier: Ekenäs, Långagärde, Västra Bryggan
  • Travel time: ca 45, 65 and 70 minutes
  • Boat: M/S Kosterskär
  • Adult, Strömstad-Koster 495 SEK
  • Child 4-12 years 200 SEK
  • Family price 1300 SEK
  • Shrimp sandwich 225 SEK
  • Ham & cheese sandwich 85 SEK
  • Cinnamon bun and coffee 80 SEK
  • Experience: The Koster Islands
  • Departure point: Resö Habor / Camping
  • Departure time: 09:45 AM
  • Tour day: Fridays
  • Piers: Ekenäs, Långagärde, Västra Bryggan
  • Travel time: ca 45, 65 and 70 minutes
  • Boat: M/S Kosterskär
  • Adult, Resö-Koster 395 SEK
  • Child 4-12 years 200 SEK
  • Family price 1300 SEK
  • Shrimp sandwich 225 SEK
  • Ham & cheese sandwich 85 SEK
  • Cinnamon bun and coffee 80 SEK

Resö Harbor

Advance booking is required.
Please pre-order food for larger groups.
Family price includes 2 adults and 2 children.
Children under 4 travel free of charge.
Toilet available on board.
Beer and wine are sold on board with full alcohol licence.
Snacks and drinks are sold on board.
Subject to weather conditions.

Phone: +46 (0)70-605 81 76
Email: info@selincharter.com

Timetable 2026
Selin Charter’s Koster Boats

Timetable: Tuesday, Thursday, Friday and Saturday

Period: 9 July – 6 August

  • Experience: The Koster Islands from Strömstad and Resö
  • From Resö Hamn: 09:45 AM – return appr. 16:30 PM
  • From Strömstad: 10:00 AM – return appr. 15:40 PM
Week 28

Tuesday, Thursday and Saturday
From Strömstad
10:00 – Norra Hamnen
10:45 – Ekenäs
11:05 – Västra Bryggan
11:10 – Långagärde

 

14:30 – Långagärde
14:35 – Västra Bryggan
15:00 – Ekenäs
15:40 – Strömstad

Week 29

Friday, 17 July
From Resö
09:45 – Resö Hamn
10:00 – Resö Camping

Tuesday, Thursday and Saturday
From Strömstad
10:00 – Norra Hamnen
10:45 – Ekenäs
11:05 – Västra Bryggan
11:10 – Långagärde

14:30 – Långagärde
14:35 – Västra Bryggan
15:00 – Ekenäs
15:40 – Strömstad
16:10 – Resö Camping
16:30 – Resö Hamn

Week 30

Tuesday, Thursday and Saturday
From Strömstad
10:00 – Norra Hamnen
10:45 – Ekenäs
11:05 – Västra Bryggan
11:10 – Långagärde

 

14:30 – Långagärde
14:35 – Västra Bryggan
15:00 – Ekenäs
15:40 – Strömstad

Week 31

Friday, 31 July
From Resö
09:45 – Resö Hamn
10:00 – Resö Camping

Tuesday, Thursday and Saturday
From Strömstad
10:00 – Norra Hamnen
10:45 – Ekenäs
11:05 – Västra Bryggan
11:10 – Långagärde

14:30 – Långagärde
14:35 – Västra Bryggan
15:00 – Ekenäs
15:40 – Strömstad
16:10 – Resö Camping
16:30 – Resö Hamn

Week 32

Tuesday, Thursday and Saturday
From Strömstad
10:00 – Norra Hamnen
10:45 – Ekenäs
11:05 – Västra Bryggan
11:10 – Långagärde

 

14:30 – Långagärde
14:35 – Västra Bryggan
15:00 – Ekenäs
15:40 – Strömstad

A Boat Trip to South Koster and North Koster

The Koster Islands consist of two main islands: South Koster and North Koster. With Selin Charter’s Koster boats, you can experience the islands from the sea and choose the route that suits your day best. Some visitors prefer a calm island day on South Koster with Naturum Kosterhavet, beaches and cycling. Others want to discover North Koster’s cliffs, viewpoints and more rugged archipelago character. If you want to see even more of Kosterhavet, you can choose to continue on the same boat trip towards a seal safari and a visit to Ursholmen Lighthouse.

Travelling to the Koster Islands by boat is part of the experience. Already on the way out, you can feel the sea air, watch islands and skerries pass by and see how the Bohuslän coastline opens up towards Kosterhavet National Park.

Sydkoster är den större och mer lättillgängliga av Kosteröarna. Här passar det särskilt bra att gå i land om du vill kombinera båtturen med Naturum Kosterhavet, bad, cykling, kortare vandringsleder och en lugn dag i bilfri skärgårdsmiljö.

För barnfamiljer, förstagångsbesökare och dig som vill uppleva mycket på kort tid är Sydkoster ofta det bästa valet. Här kan du börja vid Ekenäs, besöka Naturum, promenera mot Kilesand, bada vid strand eller klippor, hyra cykel eller fortsätta vidare mot Långegärde, Brevik och Kyrkosund. Din befintliga destinationssida lyfter just Ekenäs, Naturum Kosterhavet, Kilesand, Rörvik, Långegärde, Brevik och Kyrkosund som centrala platser på Sydkoster.

The Best Things to Do on South Koster

Naturum Kosterhavet is one of the best places to start your day on South Koster. Here you can learn more about Kosterhavet National Park, life below the surface, wildlife, marine habitats and why the area is one of Sweden’s most unique marine environments.

This is especially suitable for families, nature lovers and visitors who want to understand the place before continuing across the island. After a visit to Naturum, the boat trip, swimming, hiking or cycling on South Koster becomes even more meaningful, as you get a clearer understanding of the nature and sea surrounding you.

South Koster is one of the best choices if you want to combine a boat trip with swimming. Kilesand is one of the Koster Islands’ most popular beaches and is especially suitable for families looking for an accessible beach environment. Rörvik is a good alternative if you want to combine swimming with snorkelling, walking and proximity to Kosterhavet’s marine environments.

On South Koster, you can easily shape the day according to the weather and your preferred pace: start with the boat trip, go ashore, walk or cycle to a beach and finish with coffee, food or a quiet moment by the sea.

South Koster is especially well suited for exploring by bike. The island is largely car-free and has small roads that make it easy to move between harbours, beaches, viewpoints, cafés and natural areas. A good starting point is Ekenäs, where you are close to Naturum Kosterhavet and can easily continue towards Långagärde, Kilesand, Rörvik, Valfjäll, Brevik or Kyrkosund.

Cycling on South Koster is ideal if you want to see more of the island without doing a long hike. It is also a good option for families, as you can adapt the distance to your energy, the weather and your interests.

South Koster is also suitable for shorter hikes. If you want an easy walk near the boat, the Brown Trail / Rörvik Loop is a good option. It is approximately 2.5 kilometres long and works well for families, shorter day visits and anyone who wants to experience South Koster’s nature without setting out on a longer hike.

If you want a slightly longer but still accessible hike, the Blue Trail on South Koster is a good choice. It is approximately 3.4 kilometres long and takes you through deciduous woodland, coastal meadows, cliffs and seaside environments.

If you want to see more of South Koster, there are several places around which you can build your day. Valfjäll is one of the island’s best viewpoints, while Brevik, Kyrkosund and Långagärde offer a clearer sense of South Koster’s variation, with harbour environments, small roads, nature, sea views and local island character.

If you want to do a longer hike, the route Kyrkosund – Långagärde – Rörvik may be a good option. It is approximately 13.4 kilometres long and is suitable if you want to combine a boat trip to South Koster with a longer day hike through several of the island’s most characteristic environments.

North Koster is the right choice if you want to experience the more rugged, open and dramatic side of the Koster Islands. Here you will find cliffs, heather moorland, shingle fields, small paths, viewpoints and a stronger sense of the outer archipelago.

Unlike South Koster, which is more accessible and family-friendly, North Koster is especially suitable if you want to hike, take photographs, experience sea-facing viewpoints and feel close to the outer archipelago of Kosterhavet.

The Best Things to Do on North Koster

One of the best things to do on North Koster is to hike towards the lighthouses and viewpoints. The hike “The Lighthouses on North Koster” is approximately 3.2 kilometres long and is suitable if you want a short but memorable route with a strong feeling of sea, history and outer archipelago. From the lighthouse area, you get views over the Koster Islands, Kosterhavet National Park and the surrounding archipelago.

This is a good choice if you arrive by boat and want to fit in a clear nature experience without committing to a full-day hike.

The White Trail on North Koster is approximately 5.5 kilometres long and is ideal if you want to experience North Koster’s nature at a comfortable pace. The trail passes through a mix of paths, small roads, woodland, open land and sea-facing environments.

This is a good option for day visitors who want to combine a boat trip to North Koster with an easier hike where nature is the focus.

The Orange Trail on North Koster is approximately 5.6 kilometres long and is suitable if you want a moderately long hike with a clear archipelago feeling. Along the route, you can experience cliffs, bays, heathland and views over Kosterhavet. The trail is short enough to work as a day activity, but varied enough to give a strong sense of North Koster’s landscape.

This is a good choice for couples, smaller groups, nature lovers and visitors who want to combine boat travel, hiking and scenic views.

If you want to experience more of North Koster, the Ålviken – Valnäs – Duvnäs trail is a strong option. It is approximately 9 kilometres long and is suitable if you want a more extensive hike through North Koster’s varied and rugged archipelago landscape. The trail passes through bays, cliffs, open land, woodland and coastal sections.

This route is best suited for visitors who want a more active day and have plenty of time before the boat returns. Always plan your hike according to the current return timetable.

North Koster is one of the best choices on the Koster Islands if you want to photograph landscapes, sea, cliffs and open views. Here you get more of the rugged outer archipelago feeling, with wind, granite, heather, sea horizon and quiet paths.

For nature photographers, couples and visitors looking for a more stripped-back experience, North Koster can often feel more memorable than South Koster. The focus is less on services and more on landscape, hiking and the presence of the sea.