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Denmark
Capital Region of Denmark

Hammersø

Attractions and Places To See around Hammersø - Top 3

Best attractions and places to see around Hammersø include natural features, historical sites, and recreational activities. Hammersø is Bornholm's largest lake and Denmark's only tarn, situated amidst granite hills. The area is known for its dramatic coastlines, ancient ruins like Hammershus, and diverse landscapes. It offers a blend of natural beauty and historical significance for visitors.

Best attractions and places to see around Hammersø

  • The most popular attractions is Hammersø Lake, a lake that offers great photo opportunities with…

Last updated: June 24, 2026

Opal Lake (Opalsøen)

Highlight • Lake

Ideal place for a stopover with overnight in the small cabins, barbecue in the grill hut (think of barbecue;) - Fireplace with grill is available. Wood so far always) and …

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Zipline at Opalsee

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only available seasonally in summer and on certain days

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Hammersø and Opalsøen

Highlight • Lake

Hammersø and Opalsøen former granite quarries
visitbornholm.com/en/attractions/popular/lakes-and-peat-bogs

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Pier with Benches at Hammersø

Highlight • Rest Area

Wooden walkway with a platform and tables and benches in Hammersö. A place that invites you to linger.

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Large shelter and rest hut

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Large shelter. During our visit, there was even a small tent in the middle of the shelter, and we spent the night there.

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Lars
October 14, 2025, Große Schutz- und Pausenhütte

Large shelter. During our visit, there was even a small tent in the middle of the shelter, and we spent the night there.

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A beautiful place to relax

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Wooden walkway with a platform and tables and benches in Hammersö. A place that invites you to linger.

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Beautiful lake that invites you to linger.

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The ZIP Line was not in operation in May - appears to be installed only during the season.

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Hammersø and Opalsøen former granite quarries https://visitbornholm.com/en/attractions/popular/lakes-and-peat-bogs

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cabi
March 28, 2020, Zipline at Opalsee

only available seasonally in summer and on certain days

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Crabs live in the lake, the water is very clear. Right next to the lake there is a large covered barbecue and 2 shelters. to a toilet.

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Frequently Asked Questions

What natural attractions can I explore around Hammersø?

The area around Hammersø is rich in natural beauty. You can visit Hammersø Lake, Bornholm's largest lake, perfect for serene walks and swimming. Adjacent to it is Opalsø, an artificial lake in a former granite quarry, known for its emerald water and the exciting Zipline at Opalsee. The dramatic granite cliffs and unique rock formations of Hammerknuden, Bornholm's northernmost region, offer stunning views and diverse hiking paths.

Are there any historical sites to visit near Hammersø?

Absolutely. The most prominent historical site is the magnificent Hammershus Castle Ruins, Northern Europe's largest medieval fortress, offering panoramic views of the Baltic Sea. You can also find the ruins of Salomon's Chapel, a 14th-century chapel, and the ancient Madsebakke Rock Carvings, featuring unique Bronze Age petroglyphs.

What activities are available for families with children?

Families can enjoy several activities. The Zipline at Opalsee is a thrilling experience for older children (minimum age 6). Swimming in Hammersø Lake is popular in summer, and the Pier with Benches at Hammersø provides a relaxing spot. Exploring the Hammershus Castle Ruins can also be an engaging historical adventure for all ages. Boat trips from Hammerhavnen offer a unique coastal perspective.

Where can I find good hiking trails around Hammersø?

The Hammerknuden area is crisscrossed with numerous footpaths, offering diverse scenery from coastal paths to trails around the lakes. You can find various routes, including the 'Hammershus Castle Ruins – Camel Heads Rock Formations loop' or the 'Hammershus Castle Ruins – Hammersø Lake loop'. For more options, explore the Hikes from bus stations around Hammersø guide.

What are the options for cycling near Hammersø?

The region offers excellent opportunities for both mountain biking and road cycling. You can find MTB trails like the 'Hammershus Castle Ruins – Allinge loop' or road cycling routes such as the 'Hammershus Castle Ruins – Kirkevej loop'. Discover more routes in the MTB Trails around Hammersø guide and the Road Cycling Routes around Hammersø guide.

Is Hammersø suitable for dog owners?

Yes, the area is generally dog-friendly. Many hiking trails around Hammerknuden and Hammersø are suitable for walks with dogs. The Pier with Benches at Hammersø is also a dog-friendly spot to relax by the lake.

What is the best time of year to visit Hammersø?

The summer months (late June to mid-August) are ideal for enjoying swimming in Hammersø and activities like the Zipline at Opalsø. However, the natural beauty of Hammerknuden and the historical sites like Hammershus are accessible and enjoyable throughout much of the year, with spring and autumn offering pleasant hiking weather and fewer crowds.

Are there places to eat or stay near Hammersø?

The nearby twin towns of Allinge-Sandvig offer a vibrant atmosphere with various cafes, restaurants, and accommodation options. These towns are just a short distance from Hammersø and provide convenient bases for exploring the region.

What unique viewpoints can I find in the area?

Beyond the panoramic views from Hammershus Castle Ruins, you can find stunning vistas from Hammer Fyr (Hammer Lighthouse) at the highest point of Hammerknuden. The cliffs around Opalsø also offer dramatic viewpoints, and specific rock formations like 'Camel and Lion's Head' on Hammerknuden are notable sights.

Can I go fishing in Hammersø?

Yes, Hammersø is a popular spot for angling, home to various fish species including roach, perch, pike, tench, and eel. Please note that a fishing license is required.

What do visitors enjoy most about Hammersø Lake?

Visitors frequently highlight the serene beauty of Hammersø Lake, describing it as a beautiful little lake and a great photo opportunity, especially with the rocks in the background. The Pier with Benches at Hammersø is also appreciated as a relaxing spot to linger.

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Still not found the Highlight you’re looking for? See guides of the top attractions in other regions:

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