Natural monuments around Weilheim in Oberbayern offer a diverse landscape for outdoor exploration. This region in Upper Bavaria is characterized by its picturesque setting, featuring lakes, rivers, and prominent hills. It provides numerous opportunities for activities such as hiking and cycling. The area is valued for its varied natural features and contributions to regional biodiversity.
Last updated: May 11, 2026
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Mountain Hikes around Weilheim in Oberbayern
It's simply beautiful here, and you're rarely alone. Please keep that in mind on weekends 😉 Great views and lots of trails to choose from.
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With free drinking water station where you can fill up bottles or simply quench your thirst.
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Very nice view from here 😊
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Beautifully developed cycle route along wide meadows, fields and the river.
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Wikipedia (Osterseen, 2023-09-06): https://en.wikipedia.org/wiki/Osterseen
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The Osterseen are a group of bodies of water south of Lake Starnberg in the Weilheim-Schongau district in Upper Bavaria. The southern and central Osterseen with the Großer Ostersee belong to the municipality of Iffeldorf, the northern Osterseen from the Stechsee and the Frechensee to the municipality of Seeshaupt. Iffeldorf is around five kilometers by road northwest of Penzberg, 20 km southeast of the district town of Weilheim and 50 km south-southwest of Munich city centre. The 20 larger individual lakes have a total area of around 225 hectares and an average depth of a good nine metres. The Kleiner Gröbensee and about 15 unnamed smaller lakes, each with an area of only a few hundred square meters, are not included here, seven of which are already heavily silted up. The Osterseen and the silting-up zone bordering to the west are located in the landscape protection area "Protection of the Osterseen and their surroundings in the communities of Frauenrain, Iffeldorf and Seeshaupt". The area received this protection status as early as 1955. Since 1981 there has also been the Osterseen nature reserve with an area of 1,083 hectares. About a third of this is on the surface of the water bodies, 494 hectares are high, low and intermediate moors, 172 hectares consist of semi-natural mixed forest. Around five percent of the Osterseen landscape consists of riparian regions, silted-up areas and meadows. The nature reserve is divided into three parts, which are separated from each other by the train line of the Kochelseebahn and the state road 2063: Südliche Osterseen, Nordliche Osterseen and Frechensee. In May 1997, the Osterseen were reported to Brussels as a SPA (European bird sanctuary) and FFH area according to the Fauna-Flora-Habitat Directive. In addition to the Eggstätt-Hemhofer lake district and the Seeoner lakes, the area is the largest and most structured icefall landscape in the Bavarian Alpine foothills. The complex of boggy and nutrient-poor lakes, low, transitional and raised bogs alongside bog and swamp forests with its extraordinary diversity of species in the networked habitats, biotopes and ecological niches is of Europe-wide importance for basic scientific research. The beauty of this landscape has always attracted artists. The painter Georg Schrimpf in particular, a main representative of the New Objectivity art movement, created several oil paintings of the Osterseen in the 1930s. Source: https://de.wikipedia.org/wiki/Osterseen
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The early ascent is worthwhile, the quiet and great light make up for the small effort.
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The region offers a variety of natural landscapes. You can discover the extensive glacial area of the Great Ostersee with its glittering waters, quaint swamps, and quiet forests. Other highlights include the scenic Ammer River Trail, the panoramic views from Hoher Peißenberg Summit, and the unique Blue Gumpe Spring.
Yes, several natural monuments are well-suited for families. The Great Ostersee area is fantastic for discovery tours, and it even has a small beach for swimming. The Ammer River Trail is very flat and accessible, making it ideal for family bike rides. The Hoher Peißenberg Summit also offers family-friendly views and a restaurant.
For breathtaking panoramic views, the Hoher Peißenberg Summit is a must-visit, offering all-round vistas of Ammersee, Starnberger See, and the Alps, including the Wetterstein mountains. The Osterseen area also provides wide views across its glittering waters and surrounding landscapes.
The region is excellent for various outdoor activities. You can enjoy extensive hiking and cycling tours around the Osterseen. The Ammer River Trail is perfect for cycling. For more challenging rides, consider gravel biking routes like the "Gravel biking with a view of the Zugspitze – Hoher Peißenberg and wild Ammer" or explore MTB trails. You can find more route options in the MTB Trails around Weilheim in Oberbayern or Gravel biking around Weilheim in Oberbayern guides.
Yes, for easy and relaxed walks, the Ammer River Trail is very flat and scenic. The Bernrieder Park Lakeside Trail along Lake Starnberg also offers a pleasant route with beautiful views, suitable for leisurely strolls.
The natural monuments are enjoyable throughout the year. Spring and summer are ideal for hiking, cycling, and swimming in the lakes. Autumn offers beautiful foliage, while winter can provide opportunities for peaceful walks, though some paths might be less accessible. The Bernrieder Park Lakeside Trail is popular in every season.
Yes, the Hoher Peißenberg Summit is a notable example, featuring a more than 500-year-old pilgrimage church alongside its natural beauty and a weather station. This location offers both scenic views and cultural significance.
The Osterseen area is considered one of the most varied and instructive icefall landscapes in the northern foothills of the Alps. It showcases various typical landscape forms of the glacial series in a small space. The numerous spring pots, like the Blue Gumpe Spring, are where calcareous groundwater emerges, feeding the lakes and demonstrating the region's unique hydrogeology.
Absolutely. The Ammer River Trail is a very flat and scenic route perfect for cycling. Lake Ammer also offers cycling opportunities, though a detour via Raisting is recommended for cyclists at the southern end due to bird protection areas. The Hoher Peißenberg is also a popular destination for cycling, with routes passing by the Earth Station Raisting and the idyllic "Wilde Ammer" area. You can find more cycling options in the Gravel biking around Weilheim in Oberbayern guide.
Visitors particularly appreciate the diverse landscapes and the opportunities for immersion in nature. The wide views, glittering waters, and quiet forests of the Osterseen are highly praised. The panoramic views from Hoher Peißenberg are also a favorite, as is the beautiful and accessible scenery along the Ammer River Trail.
The area around Lake Ammer is known for its birdlife. The Ammer River itself is part of "The Stork Route," a cycling path where numerous white storks have settled, offering excellent opportunities for birdwatching. The southern end of Lake Ammer also has bird protection concerns, indicating a rich avian habitat.


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