Best natural monuments around Seeshaupt are found in a landscape shaped by the last Ice Age, featuring significant geological formations. The region is part of Upper Bavaria, characterized by the Osterseen lake system, drumlin fields, and its position on Lake Starnberg. These elements combine to create a diverse natural environment for exploration. The area offers insights into glacial processes and supports varied ecosystems.
Last updated: June 23, 2026
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Beautiful view of the Fohnsee 🌊 one of numerous lakes in the Oseter Lakes area Just to enjoy and dream 🤩👍
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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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Bavarian State Office for the Environment (Osterseen Icefall Landscape): https://www.lfu.bayern.de/geologie/bayerns_schoenste_geotope/33/index.htm https://www.lfu.bayern.de/geologie/bayerns_schoenste_geotope/33/doc/33_schautafel.pdf “The Blue Pump The Osterseen are mainly fed by groundwater, which emerges in numerous spring funnels. The best known is the Blaue Gumpe south of the Großer Ostersee. The walls of its spring funnel are covered with white deposits of freshwater lime, which is excreted from the lime-rich spring water. Since the groundwater has a relatively constant temperature of 10°C, the water surface does not freeze in winter. Steam hangs over the spring on cold winter days.” Bank 51 is nearby.
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Bavarian State Office for the Environment (Osterseen Icefall Landscape): https://www.lfu.bayern.de/geologie/bayerns_schoenste_geotope/33/index.htm https://www.lfu.bayern.de/geologie/bayerns_schoenste_geotope/33/doc/33_schautafel.pdf “The Blue Pump The Osterseen are mainly fed by groundwater, which emerges in numerous spring funnels. The best known is the Blaue Gumpe south of the Großer Ostersee. The walls of its spring funnel are covered with white deposits of freshwater lime, which is excreted from the lime-rich spring water. Since the groundwater has a relatively constant temperature of 10°C, the water surface does not freeze in winter. Steam hangs over the spring on cold winter days.” Bank 51 is nearby.
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The view of the Fohnsee here is beautiful. In my opinion there is an even nicer view (with mountains AND village in front) about 300m further north from here. And for this you don't have to leave the path and sneak onto the shore in the nature reserve. (as of August 2nd, 2022) The way past here is definitely highly recommended. A little quieter due to the lack of bathing spots.
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This of many other springs in the Osterseen is located in the shore area. You can go directly over this groundwater source via a footbridge. Crystal clear water lets you see down to the bottom. Very beautiful!
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Nice view from the Bernrieder Park out to the Strarnberger See
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Seeshaupt is situated in a landscape sculpted by the last Ice Age, offering unique geological insights. You can explore the Osterseen, a system of 19 to 24 small, hydrologically connected lakes formed by 'dead ice' blocks. The area also features a prominent drumlin landscape, elongated, oval-shaped hills of glacial till, which are direct evidence of the powerful sculpting forces of glaciers.
Among the most popular natural monuments, visitors highly recommend the Great Ostersee, which is the largest of the glacial Osterseen lakes. Another must-see is the Blue Gumpe Spring (Osterseen), a fascinating spring pot where calcareous groundwater emerges, feeding the lakes. The View of the Fohnsee also offers an impressive panorama of the surrounding nature.
Yes, several natural monuments and areas around Seeshaupt are considered family-friendly. The Great Ostersee and the general Osterseen area are great for families, offering wide views and quiet forests for discovery tours. The Bernrieder Park Lakeside Trail also provides a pleasant route through the park with views of Lake Starnberg, suitable for all ages.
The natural monuments around Seeshaupt can be enjoyed in all seasons. The View of the Fohnsee, for example, offers an impressive panorama year-round. While summer is popular for swimming at designated spots, spring and autumn provide a quieter environment with beautiful colors and comfortable temperatures for hiking. Even in winter, the landscape offers a unique, tranquil beauty.
The region around Seeshaupt offers a variety of outdoor activities. You can enjoy extensive discovery tours through the Osterseen area, with numerous hiking trails. Lake Starnberg provides opportunities for swimming, sailing, and rowing. For more structured activities, you can find various mountain hikes, running trails, and road cycling routes in the vicinity.
While the Osterseen are a protected nature reserve, designated bathing spots are available on the Fohnsee and Großer Ostersee. These allow visitors to enjoy the clear waters while helping to protect the delicate ecosystem of the other lakes and wetlands.
The Osterseen region is a biodiversity hotspot, designated as a nature reserve since 1981 and recognized as one of Germany's 77 National Geotopes. It features a mosaic of habitats including nutrient-poor wet meadows, fens, raised bogs, and mixed forests. This rich environment supports a wide variety of flora, such as globe flowers and orchids, and diverse fauna, including numerous insect populations and amphibians.
Yes, Seeshaupt's location at the southern end of Lake Starnberg offers fantastic panoramic views of the Alps to the south. The Bernrieder Park Lakeside Trail and other spots along Lake Starnberg provide excellent opportunities to enjoy this majestic backdrop, enhancing the natural beauty of the lake.
The area around Seeshaupt's natural monuments offers a range of hiking trails suitable for various fitness levels. You can find easy walks around the lakes, such as the Osterseen, or more challenging routes. For example, the mountain hikes around Seeshaupt include moderate trails like the 'View of Großer Ostersee – Fohnsee reedbed loop from Iffeldorf' and easy options like 'Fohnsee reedbed – Fohnsee - panoramic view loop from Iffeldorf'.
Visitors frequently praise the tranquil and relaxing environment of the natural monuments. Many appreciate the wide views, glittering waters, and quiet forests, especially around the Great Ostersee. The crystal-clear water at spots like the Blue Gumpe Spring and the impressive panoramas from viewpoints like the View of the Fohnsee are also highly valued.
While specific public transport details for each monument are not provided, Seeshaupt is a municipality in Upper Bavaria, and the region generally has public transport options. It is advisable to check local bus or train schedules to plan your visit to the various natural monuments, especially those further from the town center.
Seeshaupt is part of the Eberfinger Drumlinfeld, a landscape characterized by drumlins. These elongated, oval-shaped hills are unique glacial formations, direct evidence of the powerful sculpting forces of the Ice Age. The interplay of wooded drumlin hills and marshy depressions creates a varied and interesting landscape, contributing to the scenic beauty and ecological significance of the area, which is also a Natura 2000 site.


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