4.8
(10)
304
runners
27
runs
Jogging in Kosteröarnas Naturreservat offers diverse landscapes across its car-free islands. Nordkoster features heather moors and shingle fields, while Sydkoster presents deciduous forests, flower-rich meadows, and beaches. The islands are characterized by gneiss granite and rounded rock slabs, with trails often leading through scenic areas and past crystal-clear waters.
Last updated: July 13, 2026
13
runners
13.5km
01:29
70m
70m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
6
runners
6.10km
00:43
50m
50m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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6
runners
9.19km
01:05
30m
30m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5
runners
5.51km
00:37
30m
30m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3
runners
6.00km
00:40
50m
50m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Kosteröarnas Naturreservat
A lovely spot, with drinking water, toilets and a bike hire service available here
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For me, it's one of the most beautiful places on the island. The small, colorful fishermen's huts, the harbor, and, best of all, the sun and wind give you that perfect Swedish feeling.
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A nice little information center about the nature reserve. There's also the opportunity to purchase souvenirs.
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The visitor center houses the Naturum, an information terminal about the Kosterhavet nature reserve. Public restrooms and rest areas with benches and tables are also located here. You can easily pass the time waiting for the ferry.
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All I can say is, it's a postcard. Beautiful little harbor with gorgeous colorful huts. I think if someone is a good photographer, it's possible to take some really beautiful pictures with a real holiday feel.
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Since the beach is located a bit off the main hiking trail, it was deserted during our visit. The water is absolutely clear and it has a fine sandy beach. In our opinion, it's the most beautiful beach on North Koster.
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@Tilo Mushroom picking and berry picking are permitted in Sweden, both in national parks and nature reserves.
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On Nordkoster, there were porcini mushrooms in shoe size 43😁,...but just look, don't touch!!! -> Nature reserve😌
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Kosteröarnas Naturreservat offers a wide selection of running routes, with a total of 28 trails. These include 2 easy routes and 26 moderate options, catering to various fitness levels.
The islands offer diverse terrain for jogging. Nordkoster features heather moors and expansive shingle fields, while Sydkoster boasts lusher landscapes with deciduous forests, flower-rich dry meadows, and inviting beaches. You'll encounter gneiss granite and smooth, rounded rock slabs, with trails often leading through scenic areas and past crystal-clear waters.
Yes, Kosteröarnas Naturreservat has 2 easy running routes perfect for beginners or those looking for a more relaxed jog. The majority of the trails are moderate, offering a good challenge without being overly strenuous.
Joggers can discover several interesting points along the trails. On Nordkoster, you might encounter the distinctive shingle fields at Valnäs. On Sydkoster, trails often lead past stone walls, old house foundations, and restored grazing lands. Don't miss the Brevik Fishing Harbor or the scenic Norrvikarna Beach. Many routes also offer a Coastal View of Kosteröarna Nature Reserve.
The Kosteröarna islands are generally very welcoming to outdoor activities. While specific rules for dogs on trails can vary, the car-free nature of the islands makes them pleasant for exploring with a well-behaved dog on a leash. Always ensure you follow local regulations regarding pets in nature reserves.
The islands benefit from a mild, Mediterranean-like climate, making them pleasant for outdoor exercise for much of the year. Spring and summer offer lush landscapes and warmer weather, while early autumn can provide beautiful scenery with fewer crowds. Always check local weather conditions before your visit.
Yes, many of the running routes in Kosteröarnas Naturreservat are designed as loops, allowing you to start and finish at the same point. For example, the Running loop from Syd-Koster is a moderate 5.5 km trail, and the Kosteröarnas naturreservat loop from Syd-Koster offers a 6 km experience.
The Kosteröarna islands are almost entirely car-free, making them ideal for exploring on foot. Access is primarily by ferry from Strömstad. Since cars are not permitted on the islands, you would typically park in Strömstad and take the ferry. The extensive network of trails is then easily accessible upon arrival.
The running trails in Kosteröarnas Naturreservat are highly regarded by the komoot community, boasting an average rating of 4.9 out of 5 stars from over 10 reviews. Runners frequently praise the diverse landscapes, the tranquility of the car-free islands, and the well-maintained trails that offer scenic views.
On Sydkoster, you'll find the Naturum Kosterhavet, which serves as the main entrance to Kosterhavet National Park. It provides valuable information about the area's unique marine life and can be a great starting or ending point for your run. The islands also have small communities with services.
A great option on Nordkoster is the Norrvikarna Beach loop from Nord-Koster. This moderate 6.1 km path offers beautiful coastal views and takes you through the island's distinctive shingle fields, typically completed in about 43 minutes.
Absolutely. Kosteröarnas Naturreservat is surrounded by Kosterhavet National Park, Sweden's most species-rich marine area. Many running routes offer views of the national park, and the Naturum Kosterhavet on Sydkoster provides an excellent opportunity to learn more about this unique environment before or after your run.


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