4.7
(141)
1,016
riders
83
rides
Gravel biking around Altmannstein offers diverse landscapes within the Altmühltal Nature Park, characterized by varied topography. The region features sunny juniper heaths, extensive forests, and open fields, situated between the Altmühl river to the north and the Danube to the south. This geographical position provides a mix of terrain, including the southeastern foothills of the Franconian Alb, suitable for both challenging ascents and more leisurely routes. The area's well-maintained trail networks are ideal for exploring its natural beauty on gravel…
Last updated: May 15, 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.
4.0
(1)
21
riders
51.4km
03:10
650m
650m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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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.
5.0
(2)
32
riders
44.9km
02:25
360m
360m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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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 over 85 traffic-free gravel bike routes in the Altmannstein area, offering diverse experiences through the Altmühltal Nature Park. These routes range in difficulty from moderate to difficult.
The region around Altmannstein, nestled in the Franconian Alb and northern Hallertau, features a varied topography. You can expect a mix of challenging ascents and more leisurely sections, traversing extensive forests, open fields, and traditional hop gardens. Routes like the "Castles and Valleys - Graveling in the Altmuehltal Nature Park" can involve over 460 meters of elevation gain.
The trails often lead through the picturesque Altmühltal Nature Park, offering views of sunny juniper heaths and diverse forests. You can also discover historical sites such as the ruins of Altmannstein Castle and other castles. Notable viewpoints include the "Teufelsfelsen Take-off Ramp and View over the Altmühl Valley" and the "Viewpoint with summit cross in Naturpark Altmühltal".
While many routes are rated moderate to difficult, the region offers sections suitable for families, particularly along established cycleways like the Schambachtalbahn Cycle Path, which follows an old railway line. These paths often provide flatter, traffic-free surfaces ideal for a relaxed family ride.
The Altmühltal Nature Park is beautiful year-round, but spring and autumn generally offer the most pleasant conditions for gravel biking, with mild temperatures and vibrant scenery. Summer can also be excellent, though it's wise to start earlier to avoid the midday heat. Winter riding is possible, but conditions can vary, with potential for snow or ice on trails.
Yes, many of the gravel bike routes in the area are designed as loops, allowing you to start and end at the same point. An example is the "Prunn Castle photo spot – View of the Danube Gorge loop from Riedenburg", which offers a scenic circular tour.
Parking is generally available in and around Altmannstein, as well as at various trailheads and villages within the Altmühltal Nature Park. Look for designated parking areas in towns like Riedenburg or near popular starting points for cycle paths.
Public transport options, including regional buses, connect Altmannstein with surrounding towns. Some routes, like the Schambachtalbahn Cycle Path, are designed to connect to larger transport hubs, making it possible to combine cycling with public transport for access to the trails.
The komoot community highly rates the gravel biking experience in Altmannstein, with an average score of 4.66 stars. Reviewers often praise the region's diverse landscapes, the quiet, traffic-free paths, and the opportunity to explore historical sites and natural beauty within the Altmühltal Nature Park.
Absolutely. The region is rich in history. You can explore sites like the romantic ruins of Altmannstein Castle or pass by other historical landmarks. For instance, the "Castles and Valleys - Graveling in the Altmuehltal Nature Park" route highlights the historical context of the area. You can also find highlights like "Prunn Castle" and "Kipfenberg Castle" nearby.
Many routes combine natural beauty with historical elements. The "Castles and Valleys - Graveling in the Altmuehltal Nature Park" is an excellent example, guiding you through scenic valleys and past ancient castles. The Limes Cycle Path, though not a specific komoot route in this guide, also follows the ancient Roman border, offering a journey through history and natural scenery.


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