Natural monuments in Frederikssund and the surrounding Fjordlandet region offer diverse landscapes shaped by the Ice Age. The area features ancient trees, historical sites, and parts of Skjoldungernes Land National Park. Visitors can explore varied woodlands, wetlands, and open Ice Age landscapes with views across the fjord. This region provides opportunities to experience Denmark's natural beauty and geological heritage.
Last updated: May 14, 2026
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The natural spring is located in the city center, not far from the cathedral, directly opposite an old machine factory.
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You can refresh yourself here, but be careful! It's not drinking water!
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Translation of the plaque: The Royal Oak is between 1,500 and 2,000 years old. Since the giant has been hollow for centuries, it may have sprouted in the year 0. The Royal Oak was a huge oak tree when Gorm the Old reigned. Around the 16th century, Christian IV carried out the first major oak felling operations [...]. By that time, the Royal Oak was already rotten inside. At the same time, it was inaccessible, and lumberjacks were deterred by its size and gnarled trunk. The Royal Oak [...] is a popular subject for artists (painters). The Royal Oak once had a circumference of 14 meters. [...] Today, only a thin but viable bark remains. New shoots sprout from the old bark from above, forming a new crown.
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The small, bubbling spring is located not far from the cathedral.
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Maglekilde has always been Roskilde's most water-rich spring, and those most familiar with local history agree that it must be the spring that, according to legend, King Roar had in mind when he moved to Roskilde. For a time, Maglekilde supplied water to no less than five mills on the way to the fjord. Fortunately, both the spring outlet and the spring house were preserved, so we can continue to enjoy the sight of the roaring water flowing from King Neptune's mouth - and Maglekilde is now under protection, so nothing can now spoil the city's most water-rich spring of all time.
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Frederikssund is home to several remarkable natural monuments. A must-see is The Royal Oak, estimated to be between 1,400 and 1,900 years old, potentially making it Northern Europe's oldest living oak. You can also explore the ancient remains of the Stork Oak and Snail Oak within Jægerspris Nordskov. Additionally, a significant portion of the municipality lies within Skjoldungernes Land National Park, offering diverse Ice Age landscapes.
Yes, the region blends natural beauty with rich history. Besides the ancient oaks, you can visit Gulddysse Long Barrow, a well-preserved Stone Age dolmen. Another historical site is Maglehøj, a burial mound from the pre-Danish period that also offers expansive views.
Skjoldungernes Land National Park, a significant natural area in Frederikssund, boasts varied landscapes shaped by the Ice Age. You'll find rolling hills, expansive deciduous forests, tranquil lakes, and meandering rivers. The 'blue part' of the park encompasses Roskilde Fjord with salt meadows, coastal bluffs, and rich birdlife, while the 'green part' features vast forests with clearings and clean swimming lakes.
The area around Frederikssund's natural monuments is excellent for outdoor activities. You can find numerous routes for cycling, running, and mountain biking. For example, explore cycling routes like the 'Kongeegen (The King Oak) – The Royal Oak loop' or running trails such as the 'Lystrup Forest loop'. For more options, check out the Cycling in Frederikssund, Running Trails in Frederikssund, and MTB Trails in Frederikssund guides.
Many natural monuments in Frederikssund are suitable for families. The Royal Oak and the surrounding Jægerspris Nordskov are great for exploring with children, offering marked paths. Maglekilde Spring is also considered family-friendly and easily accessible.
The natural monuments in Frederikssund are beautiful year-round. Spring and summer offer lush greenery, vibrant birdlife, and pleasant weather for hiking and cycling. Autumn brings stunning fall colors to the deciduous forests of Skjoldungernes Land National Park. Even winter can be magical, with a serene, quiet atmosphere, though some paths might be more challenging.
Yes, Maglehøj, a historical burial mound, sits atop a hill 70 meters above sea level. On clear days, it offers panoramic views that can include Frederiksborg Castle, Roskilde Cathedral, Arresø Lake, and Roskilde Fjord.
Yes, Jægerspris Nordskov, where The Royal Oak and other ancient oaks are located, features marked cycling and hiking routes. These trails lead through varied woodlands and wetlands, allowing you to immerse yourself in the primeval forest environment. Maps are often available from local information points like Rejsestalden in Jægerspris.
Roskilde Fjord, part of Skjoldungernes Land National Park, is a vital natural monument. It's known for its unique fjord terrain, shaped since the last Ice Age, and features salt meadows, coastal bluffs, islands, and islets. The fjord is a haven for diverse and rich birdlife, including Denmark's largest bird of prey, the white-tailed eagle, making it ideal for birdwatching, sailing, and fishing.
Visitors frequently highlight the impressive age and historical significance of The Royal Oak, often noting its ancient, hollow trunk as a testament to centuries of endurance. The diverse landscapes of Skjoldungernes Land National Park and the historical context of sites like Gulddysse Long Barrow are also highly appreciated for their natural beauty and cultural heritage.
Yes, you can visit Maglekilde Spring, an impressive natural spring located in the Roskilde urban area, not far from the cathedral. It's a small, bubbling spring with historical significance.


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