4.5
(136)
1,034
riders
71
rides
Gravel biking around Riedenburg offers diverse terrain within the Altmühltal Nature Park, characterized by river valleys, the Jura Plateau, and dramatic limestone cliffs. The region features a mix of secluded field and forest trails, alongside paved country roads and riverside paths. Riders encounter challenging ascents to plateaus and scenic sections along the Altmühl River. This varied landscape provides a compelling environment for gravel biking adventures.
Last updated: May 5, 2026
4.7
(6)
36
riders
56.1km
03:53
460m
460m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.4
(18)
135
riders
35.0km
01:49
170m
170m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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4.0
(1)
21
riders
51.4km
03:10
650m
650m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.8
(16)
77
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.7
(6)
30
riders
51.1km
02:58
610m
610m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Riedenburg
Jurasteig — hiking in the heart of Bavaria
The Jura Trail — Bikepacking Bavaria
Golden trails – autumn hiking in Altmühltal
Sunny hiking loops – glorious autumn in the Altmühltal Nature Park
Wonderful nature and endless variety – Altmühltal Nature Park
River valleys to plateaus – gravel cycling in Altmühltal Nature Park
Altmühltal Panorama Trail – Altmühlsee to the Danube
Gut essen, gut wandern – Kulinarische Touren im Naturpark Altmühltal
Zwischen Donau, Altmühltal & Hallertau – Erlebnis-Radtouren um Kelheim
Wander[R]Auszeit in Bayerns Herzstück
Unfortunately, the Old Weir is closed and cannot be crossed 🤷♂️
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Cycling through nature – that's what makes a bike tour so special.
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Hexenagger Castle A Dietricus von Haecsenakker is mentioned as early as 928 in a Regensburg document from the St. Emmeram Monastery; further information is scarce. In 1311, Gottfried Hexenacker became Bishop of Freising. He had studied in Bologna and served as dean of the cathedral there for many years. In 1314, he died of an infectious disease while on a tour of inspection in Vienna. In 1485, the castle passed through marriage to the Counts of Helfenstein, who sold the fortress to Duke William of Bavaria in 1528. He gave Hexenagger to the Muggenthal family as a fief. When the castle was destroyed in the Thirty Years' War, the Muggenthal family rebuilt it as a castle. In 1724, the castle was sold to the Bavarian Elector Charles Albert, as the Hexenagger line of the Muggenthal family had died out. In 1731, Elector Karl Albrecht donated the castle to his mistress, Maria Josepha Countess von Morawitzky. Her husband received the castle in 1738, and when he died in 1754, Anton von Kaiserstein became the new owner. Franz Joseph III von Kaiserstein (1792–1893) sold the castle in 1830 and acquired an estate in Sooß (Lower Austria) in exchange. From 1830 to 1951, Hexenagger Castle belonged to the noble family of Weidenbach. Otto Edler von Weidenbach bequeathed it to his niece Ilse von Kalckreuth, who married Wilhelm Leichtfuß, whose son, Eberhard Leichtfuß, owns it today. Hexenagger is a castle between the Renaissance and Baroque periods, built on the foundations of the old castle. In the lower areas and at the corners, ashlars and bossed ashlars, up to several meters high, are still visible on the castle building. The stump of the keep, made of bossed ashlar, is also said to have been preserved, but is not visible from the outside. The defensive character of the complex is best appreciated from the rear, where parts of the curtain wall and wall towers have been preserved. The tall, narrow chapel also still hints at the castle in its form; particularly interesting is the slender, slightly leaning bell tower, which appears to still sit on the older foundations of the medieval chapel tower. The main building itself, with its stepped gable and beautiful garden, presents a romantic sight. The castle is privately owned and not open to the public; the popular Christmas market was relocated to the Wolfgangshof estate near Zirndorf in Middle Franconia in 2023 due to complaints from local residents. Source: www.Burgenseite.de / www.wikipedia.de
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Sandersdorf Castle The present castle dates back to a medieval castle built by the Lords of Sandersdorf as Wittelsbach ministerials. The family has been documented since the 12th century. In 1420, the castle was plundered by Duke Henry of Bavaria-Landshut while he was at war with Duke Ludwig the Bearded of Bavaria-Ingolstadt. In 1425, the castle was granted to the Muggenthal family; the first owner of this family, Erhart von Muggendal, rebuilt it. Hans Heinrich von Muggenthal succeeded in keeping peasant revolts and the Reformation away from his domain. The Sandersdorf Castle Brewery was founded in 1550. The castle was destroyed during the Thirty Years' War; Albrecht Ulrich von Muggenthal had it rebuilt as a four-winged castle by 1646. It retains this form to this day. In 1675, Dominikus de Bassus inherited Sandersdorf Castle, but he witnessed its destruction in 1703 during the War of the Spanish Succession. In May 1787, the castle was searched by Bavarian officials because it was considered an "Illuminati nest." Thomas de Bassus was a member of the Illuminati Order, founded in Ingolstadt by Adam Weishaupt in 1776; his castle was a meeting place for many of the secret society's meetings. Numerous secret documents were confiscated during the search. Around 1900, the castle was partially renovated and refurbished under the direction of the Munich architect Gabriel von Seidl. In 2008, the castle was sold by Margarethe Baroness de Bassus, along with the forest lands, to the Wittelsbach Equalization Fund. In March 2022, the castle was sold to Dr. Horst-Florian Jaeck. Parts of it are to be opened to the public. The richly structured four-winged building complex was built on medieval foundations in the 16th century, rebuilt after destruction in the 17th and 18th centuries, and remodeled in the 19th century. The high main wing faces east; it has high stepped gables on its narrow sides and three oriels with gabled tops on the wide sides facing the valley, in front of which is a kind of moat with two octagonal corner turrets. The lower castle wings to the north and south face west. The castle chapel of St. Joseph, with its octagonal domed tower, is located in the inner courtyard. Source: www.wikipedia.de
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Great view, unfortunately the cars drive very fast here.
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Seems to be the meeting point in Kelheim.
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Take a break, that's the beauty of it
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Supermarket directly on the cycle path invites thirsty (and hungry) cyclists to refuel
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There are 15 gravel bike trails around Riedenburg listed on komoot, offering a diverse range of experiences within the Altmühltal Nature Park. These routes cater to various skill levels, from moderate riverside paths to more challenging climbs.
Gravel biking in Riedenburg offers a varied landscape. You'll encounter relaxed riverside paths along the Altmühl River, challenging ascents to the Jura Plateau, and networks of secluded field and forest trails. The region also features smooth, paved country roads, juniper heathlands, and dramatic white limestone cliffs, providing a dynamic riding experience.
Yes, Riedenburg offers several moderate gravel bike trails. For example, the View of Prunn Castle – Prunn Castle photo spot loop from Riedenburg is a moderate 34.1 km route with scenic views. Another moderate option is the Old Weir on the Altmühl – Altmühl River at Kottingwörth loop from Riedenburg, which follows the Altmühl River valley for 57.6 km.
For experienced gravel bikers seeking a challenge, routes like Castles and Valleys - Graveling in the Altmuehltal Nature Park offer a difficult 56.1 km journey through varied landscapes and historical points. Another demanding option is the Prunn Castle photo spot – View of the Danube Gorge loop from Riedenburg, a 51.4 km route with significant elevation changes.
Many gravel routes in Riedenburg pass by historical and natural attractions. You can spot impressive structures like Prunn Castle and Rosenburg Castle. Natural highlights include viewpoints like View of Prunn Castle and the dramatic Danube Gorge (Weltenburg Narrows). The Beehive Rock Formation is another unique natural monument to look out for.
Yes, many of the gravel bike routes around Riedenburg are designed as loops, allowing you to start and end in the same location. Examples include the View of Prunn Castle – Prunn Castle photo spot loop from Riedenburg and the Old Weir on the Altmühl – Altmühl River at Kottingwörth loop from Riedenburg.
The Altmühltal Nature Park is generally beautiful for gravel biking from spring through autumn. Spring offers lush greenery, while autumn provides stunning foliage. Summer is also popular, but it's advisable to start early on warmer days. Winter conditions can vary, with some trails potentially being icy or muddy.
The gravel biking routes in Riedenburg are highly rated by the komoot community, with an average score of 4.6 stars from over 113 reviews. Riders often praise the diverse terrain, the scenic views of castles and river valleys, and the well-maintained mix of secluded trails and quiet country roads.
While some routes feature challenging ascents, the Altmühltal region also offers more relaxed sections, particularly along the Altmühl River. These flatter, often reinforced dirt or firm gravel paths, can be suitable for families or those looking for a less strenuous ride. It's best to check the difficulty and elevation profile of individual routes to find the most appropriate option for your family.
Riedenburg is located within the Altmühltal Nature Park, which has some regional bus services. However, options for transporting bicycles on public transport can be limited or require special arrangements. It's recommended to check local bus schedules and policies regarding bicycle transport in advance, especially for longer journeys or specific routes.
Riedenburg and surrounding towns often have designated parking areas, especially near popular trailheads or tourist attractions. Many routes are loops that start and end in Riedenburg itself, where you can find parking. It's advisable to check specific starting points of your chosen route for the most convenient parking options.
Yes, the Altmühltal region is known for its hospitality. Many towns and villages along the gravel routes, including Riedenburg, offer cafes, pubs, and restaurants where you can stop for refreshments. Some routes may also pass by traditional Bavarian beer gardens, perfect for a break.


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