Natural monuments around Fredesdorf are found within the municipality's natural region, the Holsteinische Vorgeest, through which the Schmalfelder Au river flows. The broader Segeberg district, where Fredesdorf is located, offers several notable natural attractions. These sites provide insights into the region's unique geological features and diverse ecosystems. Visitors can explore a variety of landscapes, from prominent geological formations to protected bog and heath areas.
Last updated: June 24, 2026
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A beautiful, naturally preserved area.
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You can get through the moor itself either via the railway cycle path, which is a bit more boring here, or via a path that runs parallel to it. This one is partially a bit rougher, but shows more of the moor. There is another path that leads past a small pond in the moor. I recommend it for MTB or Gravel…
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The Nienwohlder Moor lies on the watershed between the North Sea and the Baltic Sea.[2] It drains to the west into the Lankau, to the south into the Alte Alster, and to the north into the Norderbeste. The nature reserve, which is managed by the Schleswig-Holstein State Hunting Association with the exception of the areas owned by the State Forestry Administration[5],[6] can be almost completely circumnavigated on hiking trails, along which information boards are posted at several locations. In the west, a hiking trail runs through the protected area in the area of the Lunden, a towering moraine ridge.
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Today, typical raised moor vegetation can once again be found in the nature reserve, including round-leaved sundew, narrow-leaved cottongrass, bladderwort, white beak sedge, sedge cottongrass, cranberry, as well as cross-leaved heather, rosemary, and common heather. The nature reserve also represents an important habitat for birds. Various wading birds such as the curlew and the common snipe, as well as ducks such as the shoveler, teal, tufted duck, and garganey, as well as meadow pipits, whinchats, and stonechats, are native here. Marsh harriers and short-eared owls can also be found here. The undisturbed moorland is a refuge for cranes, which are now breeding here again. Various woodpecker species, red-backed shrikes, and songbirds are native to the wooded moorland areas. The nature reserve also provides a habitat for various amphibians and reptiles, as well as insects such as dragonflies and butterflies.
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The moor was renaturalized in the 1980s through rewetting measures.[2][3] Today, in the area of former industrial use, it is an open raised bog with numerous water-filled peat pits, surrounded by a bog forest. The farmer's hand-cut peat pits at the edge of the moor are often water-filled. Sphagnum moss quaking grassland grows here, and the peat pits are slowly silting up. Further areas are occupied by grassland and forest. Some of the grassland is extensively grazed by robust cattle.[4] Some areas are still intensively used for agriculture, including one arable area.
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Peat extraction, first documented in 1804, was initially carried out by peat-cutting by peat-farmers, and the peat was used as fuel. During the Napoleonic Wars of 1806–1813, peat was also shipped to Hamburg via the Alster. In the 20th century, peat extraction became an industrial operation. From 1951 to 1976, the white peat was extracted from an area of 84 hectares, initially by hand and later by machine.[2] East of Nahe, there was a peat loading point on the Elmshorn-Barmstedt-Oldesloe railway.
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The nature reserve is located northeast of Hamburg between the towns of Nienwohld, Nahe, Itzstedt, and Sülfeld. It protects a drained and largely peat-extracted raised bog area, which is the largest and best-preserved raised bog remnant in Schleswig-Holstein.[2] To the north, it borders the former Elmshorn-Barmstedt-Oldesloe Railway line.
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The approximately 398-hectare nature reserve is registered under number 100 in the register of nature reserves of the Ministry of Agriculture, Environment and Rural Areas. It was designated in 1982 (date of the regulation: March 25, 1982). The nature reserve replaces the nature reserve of the same name designated in 1980.[1] It is part of the FFH area "Alster system to Itzstedter See and Nienwohlder Moor" and the EU bird sanctuary "Alsterniederung". To the south, it borders the "Nienwohld" landscape protection area. The responsible lower nature conservation authorities are the districts of Stormarn and Segeberg.
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The most prominent geological feature is the Kalkberg in Bad Segeberg. This 'chalk mountain,' primarily composed of gypsum, is unique to the region and features an extensive cave system, which is Northern Europe's largest natural bat roost. You can also find the Noctalis Bat Centre nearby for more insights into its unique wildlife.
Yes, the region boasts significant nature reserves. The Nienwohlder Moor Nature Reserve protects a large, well-preserved raised bog, offering a glimpse into the region's natural history. Another notable area is the Wittenborn Heath Nature Reserve, which includes parts of a former training ground and is part of the European NATURA 2000 protected area system.
You can enjoy a variety of outdoor activities. For cycling, there are routes like the 'Holst Bridge over the Trave – Soldatenbrücke (FZ Holst) loop' or the 'Hofcafé Groß Niendorf – Farm Café Groß Niendorf loop'. Mountain biking enthusiasts can explore trails such as the 'Barker Heide Nature Reserve – Alter Barken Weg loop'. If you prefer running, there are several loops available, including a 9 km route directly from Fredesdorf. For more details on these and other routes, visit the Cycling around Fredesdorf, MTB Trails around Fredesdorf, and Running Trails around Fredesdorf guides.
Absolutely. Many natural monuments are suitable for families. The Kalkberg in Bad Segeberg offers a viewing platform and the fascinating Noctalis Bat Centre. Both the Nienwohlder Moor Nature Reserve and the Wittenborn Heath Nature Reserve provide accessible trails for walks. Additionally, Ludener Lake is a peaceful spot for a family outing.
The best time to visit is generally during the warmer months, from spring to early autumn (April to October), when the weather is pleasant for outdoor activities like hiking and cycling. This period also allows for optimal viewing of the diverse flora and fauna in the nature reserves. If you are interested in the bats at Kalkberg, note that the cave is closed in winter when they hibernate.
Yes, the Ludener Lake is a beautiful spot, known for its serene nature and reflections in the water. The larger Großer Segeberger See (Great Segeberg Lake), adjacent to Bad Segeberg, also offers significant recreational value with a 7.5 km circular trail, a lido, and boat rentals.
Visitors frequently highlight the stunning views from places like the Kalkberg, especially on clear days. The unique geological formations and the extensive cave system are also a major draw. The tranquility and natural beauty of the moorland and heath areas, such as the Nienwohlder Moor Nature Reserve, are also highly appreciated for relaxing walks and nature observation.
Yes, particularly at the Kalkberg in Bad Segeberg, which hosts Northern Europe's largest natural bat roost in its cave system. The Noctalis Bat Centre provides excellent opportunities to learn about and observe these fascinating creatures. The nature reserves, like the Nienwohlder Moor, also support diverse ecosystems, offering chances to spot various bird species and other local wildlife.
The Kalkberg in Bad Segeberg features a viewing platform that provides expansive views of the surrounding area, including the amphitheater below, the Great Segeberg Lake, and on clear days, even the spires of Lübeck's churches. Ludener Lake also offers picturesque views, especially with its reflections.
The landscape around Fredesdorf is part of the Holsteinische Vorgeest, characterized by a mix of geological formations, protected heathlands, and unique bog ecosystems. You'll encounter prominent features like the gypsum-rich Kalkberg, serene lakes such as Ludener Lake, and the distinctive raised bog landscape of the Nienwohlder Moor Nature Reserve.
While the focus is on natural monuments, the Kalkberg in Bad Segeberg has historical significance. It was once topped by the Siegesburg castle, destroyed in 1644, and the area now hosts an open-air theater. The Noctalis Bat Centre also provides context on the history of the mountain and its unique inhabitants.


Extend your search for the best caves by checking out these guides of the top ones around Fredesdorf: