4.6
(374)
1,365
riders
84
rides
Mountain bike trails around Kruså Møllesø traverse a unique tunnel valley landscape, characterized by undulating terrain and connection to the historic Gendarmstien. The area features a mix of coastal paths along the Flensburg Fjord, forested sections, and hilly stages with ascents and descents. This diverse environment provides opportunities for mountain biking through natural settings, including the tranquil Kruså Møllesø itself and surrounding woodlands.
Last updated: June 24, 2026
15
riders
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
4.8
(8)
17
riders
36.4km
02:23
250m
250m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

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5.0
(4)
18
riders
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
10
riders
11.6km
00:47
80m
80m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
4.8
(26)
119
riders
51.1km
02:55
310m
310m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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The Gendarmstien is worthwhile as a waterside hiking trail at any time of year, if you want to switch off for a few days.
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A slightly more difficult dirt road to ride, but also easily manageable with a gravel bike.
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The Port of Flensburg forms the maritime heart of the city of Flensburg and is located at the end of the Flensburg Fjord. It can be divided into the west side, the east side, and the harbor tip, and boasts impressive historical, industrial, and tourist attractions. On the west side is the picturesque Historic Harbor with the "Alexandra," a historic steamship, and the Museum Harbor, where around twenty traditional museum ships can be seen, including the shark cutter Dagmar Aaen. Maritime events such as the Rum Regatta and the Apple Cruise are regularly held there. The east side houses functional harbor areas: the guest sailing harbor with around 168 berths, offering modern amenities such as electricity and water, as well as the fishing harbor and the industrial harbor with quays for handling coal, fertilizer, grain, and scrap. Flensburger Hafen GmbH operates the entire harbor area and handles large volumes of freight traffic annually.  Between the two sides lies the Hafenspitze, an open space that often serves as an event venue or simply invites you to linger – perhaps to play Frisbee or relax by the water. 
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Meierwik is a small bay on the Flensburg Fjord in the city of Glücksburg, characterized by its tranquil shoreline and natural setting. The view of the fjord offers expansive views across the water to the opposite coastlines, framed by wooded slopes and a shoreline of rockfall and vegetation. The area is characterized by a moraine ridge dating back to the last Ice Age, as well as moist lowlands in the hinterland. The geological structure is typical of the fjord region and provides a vivid picture of postglacial landscape development. Access to the shore in Meierwik is provided via the shore road, where a small parking lot is available. From here, short walks or longer hikes are possible. The section of the Fördesteig trail, which leads from Meierwik along the Tremmerup Forest and past Lake Roikier, is particularly popular. These trails combine views of the fjord with the diverse natural surroundings in the hinterland.
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The Flensburg Fjord (Danish: Flensborg Fjord) is an approximately 40 to 50-kilometer-long inlet of the western Baltic Sea and forms the border between Germany (Schleswig-Holstein) and Denmark along its northern and southern sides. Geologically, it was formed by the indentation of a glacial tongue in the inland ice during the Weichselian glaciation. It is classified as a fjord rather than a fjord because its flanks are relatively low. The fjord is divided into two sections: the inner fjord toward Flensburg and the outer fjord, separated by the Holnis peninsula. At its western end, in Flensburg, it flows inland—the westernmost point of the Baltic Sea also lies along this line. Today, the region is an important sporting area, especially for sailors, and hosts major regattas such as the Flensburg Fjord Regatta and the Rum Regatta. Fjord Week, with events for classic yachts, is also part of the regular schedule. The Flensburg Fjord is also attractive for its landscape and tourism. It offers charming shorelines with beaches, steep coastlines, and moraine cliffs, nestled among gentle sandy areas. Nature and culture lovers will find a wealth of destinations along both shores: Flensburg with its historic old town and museum harbor, Glücksburg Castle, the Holnis peninsula with its protected salt marshes and lighthouses, as well as the Geltinger Birk nature reserve and the towns along the northern shore with the Gendarmenpfad (Gendarmen Trail) – a former border path along the Danish border. For centuries, the fjord has been shaped by passenger and freight traffic – historic steamers connected Flensburg with towns on both sides. Today, leisure boating, excursion boats, traditional yachts and marine activities dominate in Mürwik.
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The Quellental Marina is one of Germany's most beautiful natural harbors. The Flensburg Sailing Club, founded in 1890 and based in Quellental, operates this facility jointly with the renowned Hanseatic Yacht School (HYS). The marina has up to 240 berths and also offers moorings for visiting yachts.
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Museum harbor with the best fish stall in the guardhouse. Waiting in line is part of the experience, but it's worth it.
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There are over 90 mountain bike routes available around Kruså Møllesø, offering a wide range of options for different skill levels and preferences. These trails traverse the unique tunnel valley landscape, connecting to the historic Gendarmstien and exploring diverse forested and hilly terrain.
The mountain bike trails around Kruså Møllesø feature a diverse landscape, including undulating terrain within a tunnel valley, coastal paths along the Flensburg Fjord, and forested sections. You can expect a mix of ascents and descents, particularly on sections of the historic Gendarmstien, which offers a more challenging experience in places.
Yes, there are plenty of options for beginners. Out of the over 90 routes, 56 are classified as easy. An example of an easy route is the Gendarmstien Coastal Trail – View of Flensburg Fjord loop from Klueser Wald, which is 15.6 miles (25.1 km) long and leads through coastal sections and woodlands.
While most routes are easy to moderate, the area's diverse terrain, especially along the Gendarmstien, offers sections with significant ascents and descents that can be challenging. For a moderate option, consider the Gendarmstien Coastal Trail – View of Flensburg Fjord loop from Kruså, which is 22.7 miles (36.5 km) and follows the historic Gendarmstien with varied coastal terrain.
Kruså Møllesø is known for its tranquil beauty and rich ecosystem. While biking, you might spot diverse birdlife such as the Great Crested Grebe, Grasshopper Warbler, and Marsh Harrier. Kingfishers and White-throated Dippers can be seen in winter. The lake's location within a unique tunnel valley also provides scenic views and a distinctive landscape.
Yes, following the Gendarmstien, particularly in the heights south of Kruså Møllesø, offers magnificent views over the lake and the surrounding area. The Gendarmstien Coastal Trail – View of Flensburg Fjord loop from Kruså provides extensive views over the Flensburg Fjord.
The mountain bike routes around Kruså Møllesø are highly rated by the komoot community, with an average score of 4.6 stars from over 370 reviews. Mountain bikers often praise the varied terrain, the scenic views along the Gendarmstien, and the opportunity to explore the unique tunnel valley landscape and tranquil lake.
Yes, many of the mountain bike routes around Kruså Møllesø are designed as loops. For example, the popular MTB Trail – Kelstrup Plantation – 🚵🏼♀️Playground🚵🏾♂️ loop from Kruså is a 12.3-mile (19.7 km) circular trail through forested areas. Another option is the Gendarmstien Coastal Trail – View of Flensburg Fjord loop from Klueser Wald.
The region's diverse landscape, including coastal paths and forested areas, makes it suitable for mountain biking across multiple seasons. Spring and autumn offer pleasant temperatures and vibrant scenery. While winter conditions can vary, the Gendarmstien's varied terrain can still be explored, though some sections might be more challenging.
Yes, the historic Gendarmstien itself is a significant landmark, having been used by border gendarmes to patrol the Danish-German border. This adds a cultural layer to the natural experience. Additionally, the Kruså Stream and the historical Kobbermøllen (Copper Mill) nearby offer glimpses into the region's industrial past and natural water systems.
The mountain bike trails vary significantly in length. You can find shorter routes, such as the Flensburg Fjord – Flensburg Harbor Point loop from Nordstadt at 7.1 miles (11.4 km), up to longer excursions like the Flensburg Fjord – Glücksburg Marina loop from Padborg, which spans 31.7 miles (50.9 km).


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