Highlight • Lake
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5.0
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The Höwenegg Crater Lake, affectionately known as the "Blue Eye" of the Hegau, is a captivating natural landmark nestled in the Hegau region of Baden-Württemberg, Germany, near the town of Immendingen. Situated at an elevation of approximately 830 meters, this distinctive lake is a key feature of the Hegau volcanism, a geological area separate from the Swabian volcano. While the modern lake formed in a former basalt quarry, the site itself is part of an ancient volcanic complex that was active around 10 million years ago, once hosting a genuine crater lake in a subtropical climate.
Visitors are consistently drawn to the Höwenegg Crater Lake for its unique geological history and serene natural beauty. The impressive crater, though now filled with water from past quarrying activities, offers a glimpse into the region's volcanic past. Many appreciate the tranquil environment and the opportunity to explore a protected reserve known for its rare plants and animals, making it a true natural jewel within the broader Swabian Alb landscape.
When planning a visit, it's helpful to know that the Höwenegg Crater Lake terrain includes a circular path that allows for pleasant walks around the water. While the views directly down to the lake can sometimes be limited by vegetation, the overall experience of traversing the former quarry is unique. The area is well-suited for easily accessible hiking and cycling routes, catering to various fitness levels.
The Höwenegg Crater Lake is an excellent destination for outdoor activities like hiking and cycling throughout much of the year. Its protected status ensures a peaceful atmosphere, making it ideal for those seeking a quiet escape into nature. Exploring the Höwenegg walking routes offers a chance to connect with the area's rich geological and ecological heritage, with many finding the best time to visit during milder weather for comfortable exploration.
A popular way to experience the lake is by following the circular path that traces its perimeter. This Höwenegg Kratersee circular route provides an immersive journey through the former quarry, allowing hikers to appreciate the scale of the volcanic complex and the unique formation of the lake. While specific distances vary, this well-trodden path is a favorite among those looking to fully explore the "Blue Eye" of the Hegau.
One of the most fascinating aspects of Höwenegg is its deep history, evidenced by fossil finds of prehistoric horses, antelopes, and rhinoceroses from the ancient crater lake. These discoveries paint a vivid picture of a subtropical past, with the fossils remarkably preserved in the lake sediment. Despite the modern lake's origins in a quarry, the site retains a mysterious and impressive aura, inviting contemplation of its long and varied past.
To fully discover the Höwenegg Crater Lake and its surroundings, a variety of Höwenegg hiking paths and walking routes are available for exploration. Whether you prefer a leisurely stroll or a more active cycling tour, you can find suitable options to plan your adventure. Use komoot to explore different Höwenegg Kratersee trails and discover the best ways to experience this unique natural monument.
This Highlight is in a protected area
Please check local regulations for:
Naturpark Obere Donau
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June 23, 2021
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Nearby routes
Best routes near Höwenegg Crater Lake

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Details
Informations
Elevation 830 m
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Saturday 16 May
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Max wind speed: 7.0 km/h
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Parking is available near the Höwenegg Crater Lake, often at designated spots close to the trailheads. Hikers frequently note that parking can fill up quickly, especially during peak seasons or on weekends. Arriving early in the morning is often recommended to secure a spot.
Yes, Höwenegg Crater Lake is generally dog-friendly. Dogs are welcome on the trails, but it's always advisable to keep them on a leash, especially given the area's status as a protected nature reserve with rare plants and animals. Please also ensure you clean up after your pet.
Absolutely! The circular path around Höwenegg Crater Lake is considered easily accessible and suitable for various fitness levels, making it a great option for families. The unique geological history and the opportunity to explore a nature reserve can be an engaging experience for children. While there are no specific 'family activities' beyond hiking, the natural environment itself provides ample opportunity for exploration and learning.
The circular path around Höwenegg Crater Lake is generally considered to be of easy to moderate difficulty, suitable for most walkers and hikers. The terrain is well-maintained, though it can be uneven in places due to its quarry origins. The exact length can vary depending on the starting point and specific route taken, but a full circuit typically ranges from 2 to 4 kilometers, taking approximately 1 to 1.5 hours to complete at a leisurely pace.
While a circular path leads around the lake, visitors often note that clear views directly down to the water can be limited due to dense vegetation. However, there are several spots along the path that offer glimpses of the impressive crater and the water below. Exploring the entire circuit will give you the best chance to find these vantage points.
Yes, Höwenegg Crater Lake can be visited in winter, offering a different, often serene, experience. However, be prepared for colder temperatures and potentially icy or snowy conditions on the paths. While the intro suggests milder weather for comfortable exploration, winter hikes can be beautiful. Always check local weather forecasts and wear appropriate footwear and clothing.
Höwenegg Crater Lake is a fascinating site for geology enthusiasts. You'll observe the remnants of a former basalt quarry, which is where the modern lake formed. The surrounding area is part of the Hegau volcanism, showcasing volcanic rocks like basalt and basalt tuff. The site also holds historical significance for its fossil discoveries of prehistoric animals, hinting at an ancient crater lake and a subtropical climate from 10 million years ago.
While Höwenegg Crater Lake itself is a natural reserve without commercial facilities, the nearby town of Immendingen offers various amenities. You can find cafes, pubs, and accommodation options, including hotels, in Immendingen and the surrounding Hegau region. It's a good idea to plan your refreshments or overnight stays in these nearby towns.
No, swimming is generally not permitted in Höwenegg Crater Lake. The lake is part of a protected nature reserve, and its primary purpose is ecological preservation and passive recreation like hiking. Disturbing the natural environment, including swimming, is typically restricted to protect the delicate ecosystem.
The modern Höwenegg Crater Lake, often called the 'Blue Eye' of the Hegau, formed in a former quarrying area after basalt and basalt tuff mining ceased around 1980. In contrast, the ancient Höwenegg Crater Lake existed approximately 10 million years ago during the Neogene period, directly within a volcanic eruption crater. This ancient lake was a natural feature of a subtropical climate, evidenced by fossil discoveries of prehistoric horses, antelopes, and rhinoceroses preserved in its sediments.