Best lakes around Hemmelsdorfer Lake are found in Eastern Schleswig-Holstein, Germany, offering a diverse natural landscape. Hemmelsdorfer See is notable for its southern basin, which holds the deepest point in Germany at 39 meters below sea level. The northern part and the adjacent Aalbeek lowland are designated as a nature reserve, supporting a variety of bird species and wildlife. The region provides opportunities for hiking, cycling, and enjoying tranquil scenery.
Last updated: October 2, 2026
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According to the European Water Framework Directive (WFD), Lake Hemmelsdorf is in an unsatisfactory ecological state. The lake receives heavily to very heavily nutrient-polluted water from the larger tributaries of the Mühlenau, Thuraubek and Spannau as well as other tributaries. The visible consequences in summer are often blue-green algae and foam formation on the banks. In terms of water quality, Lake Hemmelsdorf is one of the most endangered lakes in Schleswig-Holstein.
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The fish population in Lake Hemmelsdorf includes perch, roach, bream, ruffe, zander, pike, eel, carp, and, to a lesser extent, rudd, minnow, and tench.[5] The northern part of the lake and the adjacent Aalbeek lowland were declared a nature reserve "Aalbeek Lowland" on 31 December 1984[6] and a European Bird Sanctuary in 2000, covering an area of 310 hectares.
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Breeding birds at Lake Hemmelsdorf include the mute swan, greylag goose, gadwall, coot and great crested grebe. During migration, the little gull, osprey, black tern, great egret, tufted duck and pochard are present. The kingfisher and the white-tailed eagle are regular feeding visitors. The marsh harrier, reed warbler, great reed warbler, bluethroat, penduline tit and bearded reed can be found in the reeds.
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Lake Hemmelsdorf is divided into two completely different basins in the area of the so-called Möveninsel. The larger northern basin is flat and four meters deep (four meters below sea level). The smaller southern basin is a large cryptodepression (the result of ice age glaciation). On August 31, 2007, the HafenCity University of Hamburg carried out a survey in this southern part of Lake Hemmelsdorf using sonar technology (side scan sonar, subbottom sonar and multibeam sonar) to determine the deepest point on land in Germany. The deepest point is 39.5 m and was marked with a buoy.
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With a catchment area of 36.4 km², Lake Hemmelsdorf has numerous small tributaries, including the Aalbeck, which drains Lake Ruppersdorf, and the Mühlenau, which drains the Överdiek.
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The lake was formed after the last ice age (the Weichselian glaciation), when the channel carved out by glaciers connected to the Baltic Sea and the Hemmelsförde was formed. This fjord was subsequently cut off from the Baltic Sea by the sand masses eroded from the Brodten shore by the Baltic Sea and moved westward by the current, thus forming the lake we see today.
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In 2013, a 0.5 km long riverside path was created in the Hemmelsdorf district to allow direct observation of the riverside vegetation. The footbridge was built entirely from oak wood to blend in with the landscape. The oak posts on which the footbridge is founded were not stripped to maintain their durability. Other posts were prepared in different ways to observe the course of their decay.
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Hemmelsdorf In the Hemmelsdorf district, there is a small harbor for sailboats and rowing boats at the fish smokehouse. Lake Hemmelsdorf is leased to the Lübeck-based sport fishing club SAV Pliete e. V. [10] The fish species include eel, pike, zander, tench, carp, and trout. The catch of fish is limited.
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Hemmelsdorfer See is notable for its southern basin, which holds the deepest point in Germany at 39 meters below sea level. The northern part and the adjacent Aalbeek lowland are designated as a nature reserve and European Bird Sanctuary, offering a rich variety of flora and fauna. You can also visit the Hermann-Löns-Blick Observation Tower for panoramic views over the lake, its reed belt, and surrounding forests.
Yes, the lake and its surroundings feature a well-maintained network of hiking and cycling paths. These routes allow visitors to enjoy the pristine nature, particularly along the poplar and oak avenues, providing idyllic ways to explore the hinterland between Travemünde and Timmendorfer Strand. For specific routes, you can find many options in guides like Easy hikes around Hemmelsdorfer Lake or Hiking around Hemmelsdorfer Lake.
Families can enjoy several activities. The Pier at Lake Hemmelsdorf offers a circular walkway perfect for a stroll and observing bird and plant species. The Fischereihof Hemmelsdorf is a beautifully restored area with a long bridge, ideal for a break with food and drinks, and offers insights into fishing. Additionally, the lake has a pleasant bathing area in Offendorf, suitable for swimming.
For breathtaking views, visit the Hermann-Löns-Blick Observation Tower, located on the northern edge of the lake in the Aalbeek lowlands. This 20-meter-high tower offers fantastic panoramic views over the 5-kilometer-long lake, its reed belt, and the surrounding forests and meadows. On clear days, you might even see the seven church towers of Lübeck.
Yes, you can explore the Hemmelsdorfer See Lakeside Boardwalk, a trail that provides excellent views of the lake. Another unique structure is the Pier at Lake Hemmelsdorf, which features a circular walkway directly on the lake, allowing visitors to enjoy natural vistas and observe local wildlife.
Hemmelsdorfer See offers beauty throughout the year. Spring and autumn are ideal for hiking and cycling to enjoy the changing foliage and birdwatching. Summer is perfect for bathing and enjoying the lake's recreational activities. Even on overcast days, the lake provides a pleasant alternative to the coast.
Yes, there are mountain biking opportunities in the wider region. You can find various routes and trails suitable for MTB enthusiasts. For detailed information and route suggestions, refer to the MTB Trails around Hemmelsdorfer Lake guide.
Hemmelsdorfer See is a natural and bird paradise, especially its northern part and the Aalbeek lowland nature reserve. You can spot breeding birds like mute swans, greylag geese, and great crested grebes. Kingfishers and white-tailed eagles are regular visitors, while marsh harriers, reed warblers, and bluethroats inhabit the reeds. Efforts are also made to protect endangered species like the river swallow.
Absolutely. The Fischereihof Hemmelsdorf is an excellent spot for a break, offering food and drinks, and you can enjoy fine fish in its restaurant. The area also provides tranquil scenery, perfect for relaxation and picnics with lake views in small villages like Kreuzkamp, Wilmsdorf, and Häven.
Historically, Hemmelsdorfer See has an interesting past. It was considered for use as a war harbor during Napoleon's time and even as a submarine harbor during World War II, though these plans fortunately never materialized. The lake itself was formed after the last ice age when glacial channels connected to the Baltic Sea, eventually being cut off by sand deposits.
Yes, Hemmelsdorfer See is suitable for swimming. There is a particularly pleasant bathing area in Offendorf, where visitors can enjoy the refreshing water, often sharing it with various waterfowl and fish.
Visitors particularly appreciate the tranquil scenery and the opportunity to escape the busy coastal areas. The well-maintained paths for hiking and cycling, the panoramic views from the Hermann-Löns-Blick Observation Tower, and the unique experience of walking on the Pier at Lake Hemmelsdorf are frequently highlighted as enjoyable aspects.


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