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Denmark
Capital Region of Denmark

Hammersø

The best walks and hikes around Hammersø

4.7

(1795)

7,878

hikers

148

hikes

Hiking around Hammersø, located on Bornholm, Denmark, features a landscape shaped by granite bedrock and coastal cliffs. The region offers varied terrains, including rocky heath, mixed forests, and lush valleys, with Hammersø itself being Denmark's only mountain lake. Hikers encounter diverse natural features such as the Hammerknuden headland, Opalsøen (Opal Lake), and Krystalsøen, often formed from former granite quarries. The area provides a mix of rugged coastal paths and serene lake environments.

Best hiking trails around Hammersø

  • The most popular…

Last updated: October 27, 2026

4.9

(11)

44

hikers

#1.

View of Hammeren Coast – View of the Quarry and Lakes loop from Allinge-Sandvig

6.07km

01:50

80m

80m

Moderate hike. Mostly walkable paths. Sure-footedness required.

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Easy
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Moderate hike. Mostly walkable paths. Sure-footedness required.

Moderate
Easy

Moderate hike. Good fitness required. Easily walkable paths.

Moderate
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Tips from the Community

Sven FG ⚒
August 12, 2026, Benches at Hammershus with View of Sweden

Funny, the highlight is called Benches at Hammershus; and only 1 picture is with benches. 🤣🤣🤣

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Yummy
June 28, 2026, Sandvig Batteri

The bench is an ideal resting place

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1

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Puffin
June 28, 2026, Sandvig Batteri

The defensive installation consisted of a total of 6 cannons

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2

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Jens Pedersen Kofoed was a Danish officer and freedom fighter from Bornholm. Kofoed participated in the First Karl Gustav War in 1657. He was on his home island of Bornholm when it was ceded to Sweden in 1658 in the Treaty of Roskilde. Kofoed was among the leading men of the uprising that brought the island back to Denmark the same year. Source: https://lex.dk/Jens_Pedersen_Kofoed#:~:text=Jens%20Pedersen%20Kofoed%20var%20en,førte%20øen%20tilbage%20til%20Danmark.

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3

0

beautiful view of the lake

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3

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The castle ruins are the ultimate tourist attraction on the island of Bornholm. We were lucky that it was quieter there during the off-season. The view from the ruins is very beautiful, and the hiking trails surrounding them are also not to be missed.

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4

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Lars
September 26, 2025, Hammerhavn Harbor

Nice place at the harbor.

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2

0

Great route, but it does require a bit of fitness.

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3

0

Frequently Asked Questions

What kind of terrain can I expect when hiking around Hammersø?

The area around Hammersø is characterized by a unique and varied landscape. You'll encounter dramatic granite bedrock and coastal cliffs, especially on the Hammerknuden headland. Trails often feature rocky heath with heather and juniper, mixed forests, and lush valleys. Many routes involve hilly and rocky sections, requiring good fitness and sure-footedness.

Are there any easy hiking trails suitable for beginners or those seeking a relaxed walk?

Yes, while many trails are moderate, there are easier options. For example, the Hammerhavn Harbor – Hammersø Lake loop from Langebjerg is an easy 4.4 km hike that offers a more gentle experience around the lake and harbor area.

What are some notable landmarks or natural features to look out for on the trails?

Hikers can explore several significant features. The area boasts the dramatic Hammerknuden headland with its panoramic Baltic Sea views, and fascinating rock formations like 'Camel and Lion's Head'. You'll also find other lakes formed from former granite quarries, such as Opalsøen (Opal Lake) and Krystalsøen. The historic Hammershus Castle Ruins and the Hammer Fyr lighthouse are also prominent sights.

Can I bring my dog on the hiking trails around Hammersø?

Generally, dogs are welcome on trails in Denmark, but it's important to keep them on a leash, especially in nature reserves and areas with livestock or wildlife. Always check local signage for specific restrictions on individual trails or protected areas around Hammersø to ensure a pleasant experience for everyone.

Are there any circular hiking routes available?

Yes, many of the trails around Hammersø are designed as loops, allowing you to start and end at the same point. A popular example is the Hammeren Coastal Landscape – View of the Quarry and Lakes loop from Allinge-Sandvig, which is a moderate 6.1 km route offering coastal views and insights into former quarry areas.

What is the best time of year to go hiking in Hammersø?

The area is beautiful year-round, but the best time for hiking is typically from spring through autumn (April to October). During these months, the weather is generally milder, and the natural scenery, including heather and juniper, is vibrant. Summer offers longer daylight hours, while spring and autumn provide cooler temperatures ideal for longer hikes.

Are there family-friendly hiking options around Hammersø?

Yes, there are routes suitable for families, though some trails can be hilly and rocky. Shorter, less strenuous loops are often ideal. For example, the Zipline at Opalsee – Hammersø Lake loop from Allinge-Sandvig is a moderate 2.3 km route that passes by Opalsøen, known for its clear waters and summer activities like zip-lining, which can be an exciting addition for children.

How many hiking trails are there in the Hammersø region?

There are over 150 hiking routes available in the Hammersø region, catering to various skill levels. This includes a good mix of easy, moderate, and some more challenging trails, ensuring there's something for every hiker.

What do other hikers enjoy most about hiking in Hammersø?

The area is highly rated by the komoot community, with an average score of 4.8 stars from over 1500 reviews. Hikers frequently praise the dramatic granite landscapes, the serene beauty of Hammersø itself, and the historical sites like Hammershus. The diverse terrain, from coastal paths to forest trails, is also a highlight for many.

Is it possible to reach the hiking trailheads by public transport?

Yes, public transport is available on Bornholm. Buses connect various towns and attractions, including areas near Hammersø. You can often find bus stops in towns like Allinge-Sandvig, which serve as good starting points for many trails. It's advisable to check local bus schedules for the most up-to-date information on routes and timings.

Are there opportunities for wild swimming near the hiking trails?

Yes, Opalsøen (Opal Lake), formed from a former granite quarry, is known for its crystal-clear waters and is a popular spot for swimming in the summer. Some well-equipped shelter spots around Hammersø also offer opportunities for swimming in the lake, providing a refreshing break during your hike.

Where can I find parking for the hiking trails?

Parking is generally available at key access points and popular trailheads around Hammersø and the Hammerknuden area. Specific parking areas can be found near attractions like Hammershus Castle Ruins, Hammerhavn, and in towns like Allinge-Sandvig, which serve as common starting points for many hikes.

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