Top 20 Natural Monuments around Bosau
Best natural monuments around Bosau are characterized by the serene natural landscapes of Holstein Switzerland. The region's most prominent features include the expansive Großer Plöner See and the nearby Dieksee, both integral to the Holstein Switzerland Nature Park. These lakes and their surroundings offer unique ecological features and recreational opportunities. Bosau is situated on the eastern shore of the Großer Plöner See, making it a central natural highlight.
Best natural monuments around Bosau
- The most popular natural monuments is Prinzenbad Beach, Prinzeninsel, a beach that offers views of Plön Castle and features a sandy beach. This island, historically owned by the House of Hohenzollern, is characterized by its forest and sandy terrain.
- Another must-see spot is Great Eutin Lake, a lake in Holstein Switzerland. This destination is popular for water sports and swimming, with numerous spots along its shore for breaks.
- Visitors also love Sterin Island (Großer Plöner See), an island within the Great Plön Lake. This island is known for its cormorant colonies and offers idyllic bays and small beaches.
- Bosau is known for its lakes, islands, and beaches. These natural features provide diverse opportunities for outdoor activities and observation of local wildlife.
- The natural monuments around Bosau are appreciated by the komoot community, with more than 1700 upvotes and over 230 photos shared by visitors.
Last updated: July 8, 2026
Sterin Island (Großer Plöner See)
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Kellersee — Lakeside view at Sielbeck
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This lake also offers great opportunities for anglers. You can catch eels, perch, bream, pike, tench, zander, carp, and others 🐟
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Kellersee Pier
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The "Janusallee" pier is used by the Kellersee cruise on the journey from Malente to Sielbeck-Uklei. It is located in the immediate vicinity of the children's playground on Janusallee and the Wonderworld of Water on the Kellersee promenade.
Parking spaces with public restrooms are just a few minutes' walk away.
Passengers boarding here purchase their tickets for the Kellersee tour aboard the MS Luise.
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Prinzenbad Beach, Prinzeninsel
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prinzeninsel.de
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Great Eutin Lake
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Tips from the Community
In Plön and the surrounding area, there are cormorant colonies that sometimes cause damage to vegetation and fisheries. The island of Sterin in the Great Plön Lake is a well-known example of the destructive effect of cormorant droppings, which virtually destroy vegetation. There was also a cormorant colony on an island in Lake Selent, which was later abandoned and subsequently recovered.
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Pure scenery. Whether by bike or on foot, it's currently (May) a stunning landscape. Free access with the D-Ticket. Parking is available. While you're here, be sure to visit the castle gardens around the corner.
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The Janusallee pier is within walking distance of the Wonderworld of Water on the Kellersee promenade. The "Janusallee" pier is used by the Kellersee cruise on the journey from Malente to Sielbeck-Uklei. It is located in the immediate vicinity of the children's playground on Janusallee and the Wonderworld of Water on the Kellersee promenade. Parking spaces with public restrooms are just a few minutes' walk away. Passengers boarding here purchase their tickets for the Kellersee tour aboard the MS Luise.
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This lake also offers great opportunities for anglers. You can catch eels, perch, bream, pike, tench, zander, carp, roach, rudd, and burbot. For further important information and legal regulations regarding this fishing area, as well as for fishing permits, please contact: Schwarten Fishing Tenant Kellerstraße 52 23714 Bad Malente-Gremsmühlen Tel.: +49 4523 3563
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Kellersee borders Malente to the east. It has a total area of approximately 50.6 hectares and a maximum depth of approximately 27 meters. A 14.6 km hiking trail surrounds the lake, including several highlights along the way. These include, for example, the "WunderWeltWasser" nature trail for all ages and the Rothensande estate, the original setting for the Immenhof films. Kellersee can be explored by both excursion boats and sailboats. Canoe trips from Eutin-Fissau are also possible, and there is also a swimming area here. Other swimming areas can be found in Wöbbensredder or at Hamburger Strand in Sielbeck. The swimming areas in Sielbeck and Fissau are unguarded. Anglers also have plenty of opportunities here, as the lake has a good population of zander, pike, and sea bass. Numerous waterfowl can also be observed here. This lake also offers great opportunities for anglers. You can catch eels, perch, bream, pike, tench, zander, carp, and others 🐟
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The Great Plön Lake attracts visitors in summer with bathing areas and good water sports opportunities. In addition to beautiful hikes and boat trips, a stroll through the small town of Plön is also worthwhile. With an area of around 28 square kilometers, the Great Plön Lake is the largest inland body of water in Schleswig-Holstein.
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There is a ban on the use of boat engines on the Great Plöner Lake (with exceptions for commercial shipping and rescue services). For several years now, electric motors for fishing boats and sailing boats (calm pushers) have been allowed on the Great Plöner Lake.
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Sailing school on Lake Plön with boat rental for pedal boats, rowing boats, SUP and sailing courses. The Plön sailing school offers a wide range of courses from May to October, with something for everyone: just a taster of sailing, courses for beginners, intensive advanced courses or sailing with a catamaran are all possible at the Plön sailing school as an individual, group or even class. There are also special sailing courses for children. Great group tours with dragon boats, canoes or sailing boats are ideal for your active holiday or as a team building event. In addition to sailing boats, fishing boats, rowing and pedal boats, dragon boats and stand-up paddling boards can be rented.
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Frequently Asked Questions
What unique natural features can I discover around Bosau?
Bosau is nestled in Holstein Switzerland, characterized by its serene natural landscapes. The most prominent features are the expansive Großer Plöner See and the nearby Dieksee. These lakes are integral to the Holstein Switzerland Nature Park, offering unique ecological features. The Großer Plöner See is the largest and deepest lake in Schleswig-Holstein, known for its rich biodiversity and numerous islands like Sterin Island, which hosts cormorant colonies. The Dieksee features the scenic Dieksee Promenade and the unique Mirror Ponds and Kneipp Pool, fed by fresh spring water.
What kind of wildlife can be observed near Bosau's natural monuments?
The Großer Plöner See, being part of the Holstein Switzerland Nature Park, is home to a diverse array of water birds. Visitors might even spot the reintroduced sea eagle within the "Plöner See" nature reserve. The wooded banks and over 30 islands contribute to a rich habitat. Sterin Island, for example, is known for its cormorant colonies. The Kellersee also offers opportunities to observe numerous waterfowl.
Are there hiking or walking trails around the natural monuments?
Yes, the region offers extensive opportunities for hiking and walking. A 14.6 km hiking trail surrounds the Kellersee, including several highlights like the "WunderWeltWasser" nature trail. The Großer Plöner See also has well-maintained cycling and hiking trails around its shores. For more options, you can explore easy hikes around Bosau, including routes like the "View of Plön Lake – Kleines Warder Peninsula loop from Bosau".
What outdoor activities are available near Bosau's natural monuments?
Beyond hiking, the lakes offer extensive opportunities for water sports, including swimming, sailing, and fishing. Boat tours on both the Großer Plöner See and the Dieksee provide a chance to experience the lakes' beauty and observe wildlife. You can also find gravel biking routes and running trails in the area, such as the "Great Eutin Lake – Great Eutin Lake loop from Eutin" for biking or the "Bosau – View of southern Plöner See loop from Stadtbek" for running.
Are there family-friendly natural monuments around Bosau?
Many natural monuments in the area are suitable for families. Prinzenbad Beach, Prinzeninsel, offers a sandy beach and views of Plön Castle, perfect for a family outing. The Mirror Ponds and Kneipp Pool in Malente provide a unique natural wellness experience that can be fun for all ages. The Kellersee also features the "WunderWeltWasser" nature trail, designed for all ages.
Can I bring my dog to the natural monuments?
Many trails and natural areas around Bosau are dog-friendly. For example, the Kellersee area is noted as dog-friendly. However, it's always advisable to keep dogs on a leash, especially in nature reserves or areas with sensitive wildlife, and to check local regulations for specific sites.
When is the best time to visit the natural monuments around Bosau?
The natural monuments around Bosau, particularly the lakes and surrounding nature park, are beautiful year-round. Spring and summer are ideal for water sports, swimming, and enjoying lush greenery. Autumn offers stunning foliage, while winter can provide a serene, quiet experience, though some facilities might have reduced hours. The "White Fleet" cruises on the Dieksee and Großer Plöner See typically operate during the warmer months.
Are there any wheelchair-accessible natural monuments around Bosau?
While specific wheelchair-accessible trails are not detailed for every monument, the Dieksee Promenade along the western shore of the Dieksee offers pleasant walking opportunities with views of the lake, which may be suitable for some visitors with mobility aids. It's recommended to check specific site conditions or contact local tourist information for detailed accessibility information.
Where can I find places to eat or drink near the natural monuments?
The region around Bosau and the lakes offers various options. The farmhouse on Prinzeninsel, for instance, houses a beautiful tourist restaurant. Along the shores of the Great Eutin Lake, you'll find beautiful spots for a break, and towns like Malente and Plön, which are close to the natural monuments, offer cafes and restaurants.
What do visitors enjoy most about the natural monuments around Bosau?
Visitors frequently appreciate the scenic beauty and tranquility of the lakes and surrounding nature. The idyllic bays and small beaches of the Großer Plöner See are highly valued. The opportunity for diverse outdoor activities, from swimming and sailing to hiking and cycling, is also a major draw. The unique experience of the Mirror Ponds and Kneipp Pool and the historical context of places like Prinzeninsel also contribute to a rich visitor experience.
How were the Großer Plöner See and Dieksee formed?
Both the Großer Plöner See and the Dieksee are products of glacial processes during the last ice age. The Großer Plöner See, for example, was formed by two glacial basins, giving it its distinctive structure and depth. This geological history contributes to the unique landscape of Holstein Switzerland.
Are there boat tours available on the lakes?
Yes, boat tours are a popular way to experience the beauty of the lakes. The Großer Plöner See offers various boat tours, allowing visitors to observe its wildlife up close. The Dieksee is also part of routes for boat cruises, such as the "5-Lakes Cruise," providing a unique perspective of the natural landscape of Holstein Switzerland from the water.
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