Best attractions and places to see in Stendörren include a unique archipelago landscape on the Baltic Sea coast. This nature reserve, located between Nyköping and Trosa, is characterized by glacially-scoured granite cliffs and diverse coastal environments. It offers accessible ways to experience the inner archipelago, including suspension bridges connecting mainland to islands. The area provides insights into both natural history and coastal culture.
Last updated: July 5, 2026
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Popular around Stendörren
Truly a highlight in a dreamlike setting
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The walk across the suspension bridges is an experience. It rocks and shakes, but it holds! Only two people at a time, and keep your distance!
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Amazing! The best hiking boots I've had in Sweden so far. A wonderful place!
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A very well-signposted tour. It's best to wear sturdy shoes, as it's easy to twist your ankle. If the weather's nice, don't forget your swimsuit and barbecue gear, as there are many beautiful spots where you can grill.
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The views at the end of this peninsula are stunning on a clear day, with panoramas of coastal scenery.
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One of the most beautiful tours we have hiked with the family. The Naturum is a small museum/exploration center and is free. The tours are very well signposted.
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The whole island is rocky. You can actually easily go into the water at any point. Like in a picture book!
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Nice swimming spots at several corners of the park
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Stendörren is characterized by a unique archipelago landscape on the Baltic Sea coast, featuring smooth, glacially-scoured granite cliffs and a mix of pine and deciduous forests. The area showcases reddish gneiss rock, approximately 1.8 billion years old, with grinding marks from Ice Age glaciers. You can experience this diverse environment at places like Drunnviken - Stendörren Nature Reserve.
The suspension bridges are an iconic feature, connecting the mainland to islands like Äspskär and Stora Krokholmen. They allow visitors to walk out into the inner archipelago without a boat, offering a unique and direct experience of the coastal island environment. The Suspension bridge over the Stendörren Strait is particularly well-known for this.
Yes, Stendörren offers several excellent viewpoints. A new watchtower, built in 2021, provides panoramic views over the Södermanland archipelago. Additionally, the View of the Archipelago Coast is a popular spot offering stunning vistas of the surrounding islands and the Baltic Sea.
The reserve boasts diverse flora and fauna. Birdwatchers can spot common terns, eiders, herring gulls, goosanders, oystercatchers, and even white-tailed eagles. Terrestrial animals like hares, foxes, badgers, deer, and elk inhabit the forested areas, and there's a chance to spot gray seals in the waters. The brackish waters also host marine life such as jellyfish, bleak, and pipefish.
Yes, visitors can enjoy swimming in the Baltic Sea. There are many spots, often from sun-warmed rocks, where you can easily access the water. The Rocky Swimming Spot on the Baltic Coast is a great example, offering picturesque swimming opportunities.
Absolutely. The Stendörren Nature Reserve is very family-friendly. The Naturum Stendörren visitor center offers exhibitions, guided tours, and a touch tank for children to learn about marine life. There are also numerous designated barbecue areas with firewood and benches, perfect for family picnics. Many trails are well-signposted and suitable for families.
While many trails traverse rocky terrain, some paths, particularly at Lerviksudden, are designed to be accessible for strollers and wheelchairs, allowing more visitors to enjoy the coastal environment.
Yes, Stendörren Nature Reserve generally welcomes dogs. However, it's important to keep them on a leash, especially during nesting seasons and in areas with sensitive wildlife, to protect the natural environment and other visitors.
Beyond hiking, Stendörren is popular for sea kayaking in its calm, sheltered bays, offering a unique way to explore the archipelago. Recreational fishing is also common, with pike and perch being frequent catches. For those interested in cycling, there are routes available in the wider region, which you can explore in the Cycling in Stendörren guide.
Yes, Stendörren offers an extensive network of well-marked trails for various skill levels. You'll find easy walks, such as those around the Naturum, and more moderate routes that traverse coastal forests and extend onto the islands via the suspension bridges. The long-distance Sörmlandsleden trail also passes through the reserve. For more details, check out the Hiking in Stendörren guide.
Stendörren has a rich history, having served for centuries as an important 'gateway to the sea' and a key inner channel for ships. The name 'Stendörren' ('The Stone Door') itself refers to the narrow passage between islands. The Experience Trail, starting near the visitor center, offers an outdoor exhibition by Sörmlands Museum, depicting life in the area's past.
Stendörren is beautiful year-round, but the summer months (June-August) are ideal for swimming, kayaking, and enjoying the full range of activities and the Naturum's educational programs. Spring and autumn offer pleasant hiking conditions with fewer crowds and vibrant natural colors. Even winter can be charming for quiet walks, though some facilities might have reduced hours.
The Naturum Stendörren is the main visitor center, providing extensive information, exhibitions, and educational activities. While there are no restaurants directly within the reserve, numerous designated barbecue areas with firewood are available for visitors to use. Cafes and restaurants can be found in nearby towns like Nyköping and Trosa.


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