Kosterhavet National Park, Sweden Travel Guide

Discover the wonders of Kosterhavet National Park, Sweden's first marine national park, featuring diverse marine life, crystal-clear waters, and stunning coastal landscapes.

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Kosterhavet National Park

Kosterhavet National Park is Sweden's first marine national park, located on the west coast, near the Norwegian border. It is known for its stunning natural beauty and rich marine life. The park covers over 400 square kilometers of coastal waters, islands, and rocky shores, offering a unique experience for nature lovers and adventure seekers alike. The park is home to over 6,000 different marine species, including rare fish, seals, and seabirds. Visitors can explore the underwater world through snorkeling and diving, with crystal-clear waters providing excellent visibility. On land, the park's islands and archipelagos are perfect for hiking, cycling, and birdwatching. Kosterhavet is also a haven for kayaking and boating enthusiasts. The calm waters and numerous islands make it an ideal location for paddling around and discovering hidden coves and beaches. The nearby Koster Islands are car-free, adding to the serene and unspoiled atmosphere of the area. Whether you are interested in marine biology, outdoor activities, or simply soaking in the breathtaking scenery, Kosterhavet National Park offers something for everyone. It's a destination that promises both relaxation and adventure in a pristine natural setting.

From Eve

Know before you go

Hi, I'm Eve. Here are a few practical things to know before exploring Kosterhavet National Park.

Visit during the summer months (June to August) for the best weather and optimal conditions for outdoor activities.
Bring your own snorkeling or diving gear to fully experience the underwater beauty of the park.
Take advantage of the car-free Koster Islands by renting a bicycle to explore the area at a leisurely pace.
Pack a picnic and enjoy a meal on one of the many scenic beaches or rocky outcrops.
Book guided tours or activities in advance, especially during peak tourist season, to ensure availability.

Explore Kosterhavet National Park: Things to Do, Places to Eat, Hotels & More

Handpicked recommendations for top attractions, local dining, accommodations, and more

Best attractions in Kosterhavet National Park

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Best Attractions

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Diggiloo - Strömstad

Experience the vibrant entertainment scene at Diggiloo, Strömstad's premier tourist attraction, combining stunning scenery with captivating performances.

5.0

naturum Kosterhavet

Dive into Sweden's first marine national park at this engaging visitor center, where aquariums, films, and expert insights reveal the archipelago's hidden underwater realms.

4.6

Rock Carvings in Tanum

An open‑air gallery of Bronze Age life carved into Bohuslän’s granite—boats, rituals and wildlife spanning millennia.

4.6

Kosterhavet National Park

Sweden’s first marine national park — deep fjords, cold‑water corals and car‑free island lanes teeming with unique sea life.

4.7

Best landmarks in Kosterhavet National Park

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Entrance Tjärnö / Saltö

Explore the stunning landscapes and diverse wildlife of Tjärnö and Saltö National Reserve, a natural paradise in Sweden.

4.5

Stenskeppet - Blomsholm Stone Ship

Sweden's third-largest stone ship: Iron Age maritime might amid Bohuslän's prehistoric wonders, where ancient seas met symbols of power and eternal voyages.

4.6

Naval mines monument

Sculpted tribute to wartime naval mines guarding Strömstad's shores—a poignant fusion of history, harbor life, and endless sea horizons.

4.0

Stadshus Strömstad

Strömstad's granite-clad Jugendstil gem: a 1917 municipal masterpiece blending civic duty with coastal elegance.

4.6

Best restaurants in Kosterhavet National Park

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Göstases

Lively marina seafood haven in Strömstad, blending fresh catches, generous portions, summer live music, and harborfront terrace vibes for every crowd.

4.1

Relax bar & bistro

Strömstad's cozy Thai bistro haven: authentic flavors, friendly vibes, and perfect casual hangs with affordable drinks and fika.

4.3

Restaurant Packhuset

Pirate-themed dining at Daftö Resort: savor Bohuslän seafood, pizzas, and burgers amid live shows and coastal vibes in family adventure central.

3.8

Tavernan på Syd

Island Italian haven on Sydkoster: handmade dishes, sea views, rooftop cocktails in Sweden's enchanting Koster archipelago.

4.1

Best bars in Kosterhavet National Park

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Restaurangbiografen Park

Strömstad's ultimate cinema-restaurant where film, flavorful Scandinavian dishes, and friendly vibes create unforgettable evenings for all.

4.5

Toro

Charcoal-grilled Mediterranean tapas and hearty mains in the heart of Strömstad — lively, shareable dining with vegetarian and vegan choices.

4.4

Kontoret Bar & Restaurang

A central Strömstad sports bar and grill — casual food, big‑screen sport and a friendly local atmosphere for lunch or evening socialising.

3.8

The COD

Casual harbour-side seafood bar in Strömstad offering fresh local catch, cosy indoor seating and a breezy quay terrace for relaxed coastal meals.

3.6

Best nightclubs in Kosterhavet National Park

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Nini Beach

Dive into Fredrikstad's electric nightlife at Nini Beach, where masterful cocktails and DJ beats create unforgettable nights in the heart of Storgata.

3.3

Charlies Nightclub

Dive into Kungshamn's pulsating nightlife at Charlie's Nightclub, where coastal beats and island vibes create unforgettable nights under the Bohuslän stars.

Hannestadgården

A compact, late‑night Halden nightclub focused on DJ sets and weekend dance parties for the 18+ crowd.

1.9

Red Reef

A compact, music-forward nightclub above Havsbadet — seasonal, lively and tied to Lysekil’s harbour-side summer scene.

3.0

Best shops in Kosterhavet National Park

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Kosterhavet National Park

Dive into Sweden's first marine national park: coral reefs, seal colonies, and car-free island trails in the vivid Koster Sea, a biodiversity jewel on the Skagerrak frontier.

4.7

H&M

Affordable Scandinavian style awaits at H&M in Nordby Shoppingcenter, Sweden's border retail powerhouse drawing fashion lovers from across the frontier.

4.1

Asian Market Stromstad

Nordens largest Asian grocery haven in Strömstad: fresh produce, endless noodles, sauces, and frozen delights for authentic home cooking adventures.

4.4

Gottebiten, Strömstad Shoppingcenter

Sweden's candy paradise in Strömstad Shoppingcenter: 600+ loose sweets, snacks, drinks, and tobacco at border prices—pure indulgence awaits.

4.1

Explore Kosterhavet National Park on the Map

A handpicked selection of must-see spots in Kosterhavet National Park, mapped for you.

Kosterhavet National Park Essentials

Kosterhavet National Park is located off the west coast of Sweden, near the border with Norway. The nearest major city is Gothenburg, which has an international airport (Gothenburg Landvetter Airport). From Gothenburg, you can take a train or bus to Strömstad, the gateway to Kosterhavet. The train journey takes about 2.5 hours. From Strömstad, you can catch a ferry to the Koster Islands. The ferry ride takes approximately 30-45 minutes and operates year-round but with more frequent services in the summer.
Once you arrive at the Koster Islands, the primary modes of transportation are bicycles and walking, as motor vehicles are largely restricted. Bicycles can be rented at various locations on the islands. There are also electric shuttle services available for those who might need them. For exploring the marine areas, kayaks and boats can be rented. The islands are well-connected by a network of walking and cycling paths that make it easy to get around.
The official currency in Sweden is the Swedish Krona (SEK). Credit and debit cards are widely accepted, and there are ATMs available in Strömstad and on the Koster Islands. However, it is advisable to carry some cash for smaller establishments and in case of any technical issues with card payments. Mobile payment options like Swish are also widely used.
Kosterhavet National Park is generally very safe for tourists. There are no specific areas with high crime rates targeting tourists. However, standard precautions should be taken, such as not leaving belongings unattended and being aware of your surroundings, especially in crowded areas like ferry terminals. The islands have a low crime rate, and the local community is known to be friendly and helpful.
In case of emergency, dial 112 for immediate assistance. The Koster Islands have a small medical clinic for minor health issues, but for more severe medical emergencies, you may need to go to the hospital in Strömstad or Gothenburg. It is highly recommended to have travel insurance that covers medical emergencies and evacuation. Lifeguards are not stationed at all beaches, so exercise caution when swimming or engaging in water activities.
Fashion: Do wear comfortable, weather-appropriate clothing. Layering is recommended due to unpredictable weather. Avoid overly flashy or revealing clothing. Religion: Do respect local customs and traditions, although the area is not particularly religious. Public Transport: Do be punctual as public transport in Sweden runs on a strict schedule. Don’t be loud or disruptive on public transport. Greetings: Do greet locals with a friendly 'hej' (hello) and a handshake. Eating & Drinking: Do try local seafood delicacies. Don’t leave a large amount of food uneaten as it is considered wasteful.
To experience Kosterhavet National Park like a local, consider visiting during the off-peak seasons to enjoy a quieter, more serene environment. Engage with local fishermen and ask about the best spots for fishing or kayaking. Try the locally caught seafood at one of the island's restaurants. Participate in guided tours to learn more about the unique marine biodiversity and conservation efforts. Don’t miss the chance to explore the underwater snorkeling trails, which are a unique feature of the park.

When is the best time to visit Kosterhavet National Park?

With Eve

Useful Local Phrases for Kosterhavet National Park

You don't need to speak the language perfectly. Even learning a few simple words can make conversations warmer—and locals usually appreciate the effort.

— Eve

6 phrase groups English + pronunciation

Here are the phrases I use most often in Kosterhavet National Park. Try a few—you'll be surprised how far they go! 😊
❤️

- HelloHej
  [hey]
- GoodbyeAdjö
  [ad-yu]
- YesJa
  [ya]
- NoNej
  [nay]
- Please/You're welcomeSnälla/Tack
  [snail-la/tack]
- Thank youTack
  [tack]
- Excuse me/SorryUrsäkta
  [oor-sek-ta]
- How are you?Hur mår du?
  [hur mor doo]
- Fine. And you?Bra. Och du?
  [bra. okh doo]
- Do you speak English?Talar du engelska?
  [ta-lar doo eng-el-ska]
- I don't understandJag förstår inte
  [yahg for-stor een-te]
- I'd like to see the menu, pleaseJag skulle vilja se menyn, tack
  [yahg skul-le vil-ya say me-nin, tack]
- I don't eat meatJag äter inte kött
  [yahg at-er een-te chot]
- Cheers!Skål!
  [skol]
- I would like to pay, pleaseJag skulle vilja betala, tack
  [yahg skul-le vil-ya bet-ta-la, tack]
- Help!Hjälp!
  [yelp]
- Go away!Gå iväg!
  [go iv-ayg]
- Call the Police!Ring polisen!
  [ring po-lee-sen]
- Call a doctor!Ring en läkare!
  [ring en la-kar-e]
- I'm lostJag är vilse
  [yahg air vil-se]
- I'm illJag är sjuk
  [yahg air shuuk]
- I'd like to buy...Jag skulle vilja köpa...
  [yahg skul-le vil-ya chaw-pa]
- I'm just lookingJag tittar bara
  [yahg tee-tar ba-ra]
- How much is it?Hur mycket kostar det?
  [hur my-ket kost-ar det]
- That's too expensiveDet är för dyrt
  [det air fur deert]
- Can you lower the price?Kan du sänka priset?
  [kan doo sain-ka pre-set]
- What time is it?Vad är klockan?
  [vad air klok-an]
- It's one o'clockKlockan är ett
  [klok-an air et]
- Half past (10)Halv (tio)
  [halv tee-o]
- MorningMorgon
  [mor-gon]
- AfternoonEftermiddag
  [ef-ter-mid-dag]
- EveningKväll
  [kvel]
- YesterdayIgår
  [ee-gor]
- TodayIdag
  [ee-dag]
- TomorrowImorgon
  [ee-mor-gon]
- 1Ett
  [et]
- 2Två
  [tvo]
- 3Tre
  [tre]
- 4Fyra
  [fyra]
- 5Fem
  [fem]
- 6Sex
  [sex]
- 7Sju
  [shu]
- 8Åtta
  [ot-ta]
- 9Nio
  [nee-o]
- 10Tio
  [tee-o]
- Where's a/the...?Var finns en/ett...?
  [var fins en/et]
- What's the address?Vad är adressen?
  [vad air ad-ress-en]
- Can you show me (on the map)?Kan du visa mig (på kartan)?
  [kan doo vee-sa may (poh kart-an)]
- When's the next (bus)?När går nästa (buss)?
  [nair gor nes-ta (boos)]
- A ticket (to ....)En biljett (till ....)
  [en bil-yet (til)]

History of Kosterhavet National Park

The waters surrounding Kosterhavet National Park have been vital maritime routes since ancient times. Archaeological findings reveal that the area was used by seafaring people as early as the Bronze Age, around 1500 BCE. These early inhabitants relied on the rich marine life for sustenance and used the waterways for trade and communication.
During the Viking Age (circa 800–1050 CE), the Kosterhavet archipelago was an essential part of the Norse maritime network. The Vikings, renowned for their seafaring prowess, used these waters for navigation, raiding, and trading expeditions. Evidence of Viking activity, including burial sites and artifacts, has been discovered on the islands, highlighting their historical importance.
In the Middle Ages, Kosterhavet became known for its thriving fishing communities. The rich waters provided abundant catches of herring and cod, which were essential to the local economy. The fishing villages that emerged during this period laid the foundation for the maritime culture that still characterizes the region today.
The 18th century saw increased naval activity in the waters of Kosterhavet due to conflicts between Sweden and neighboring countries. The strategic location of the archipelago made it a focal point during the Great Northern War (1700–1721) and subsequent skirmishes. Coastal defenses and lookout points were established to monitor and protect the area from naval incursions.
Kosterhavet National Park was officially established in 2009, becoming Sweden's first marine national park. The park was created to protect the unique marine biodiversity of the area, including its coral reefs, kelp forests, and diverse marine species. The designation of the park marked a significant step in preserving the natural and cultural heritage of the Kosterhavet archipelago for future generations.
The cultural heritage of Kosterhavet is deeply intertwined with its maritime history. Local traditions, such as the annual herring festival and traditional boat-building techniques, have been preserved and celebrated by the island communities. The park's visitor centers and museums offer insights into the region's cultural and historical legacy, fostering a deeper appreciation for its unique identity.