Anyone embarking on a journey through the Northern Black Forest will inevitably encounter it: The Black Forest High Road (B500) It is the oldest and one of the most spectacular panoramic roads in Germany. It winds its way for over 60 kilometers along the highest ridges of the mountains, offering views that, on clear days, extend far into the French Rhine Plain and to the Vosges Mountains. Right along this dream route, nestled in dense fir forests and dark, mythical landscapes, lies the absolute heart of the region: the legendary Mummelsee.
This deep, dark glacial lake captivates hikers, motorcyclists, and families alike. Here, pristine nature, vibrant legends, and Baden hospitality converge. In this guide, we take you on a journey of discovery far removed from the typical clichés. You'll learn why swimming in the Mummelsee isn't recommended, where to enjoy the region's most beautiful views, and how to plan your excursion along the... Panoramic road Plan perfectly.
The dark eye of the Black Forest: Facts about Lake Mummelsee
Before we delve into the legends, let's take a look at the impressive geological data that makes this place so special:
- Geographical location: Directly on the Black Forest High Road at the foot the Hornisgrinde in the northern Black Forest.
- Altitude: At 1.036 meters above sea level (NHN), it is the highest cirque lake in the entire Black Forest.
- Depth: The lake drops off steeply and reaches a maximum depth of 18 meters.
- Origin: A relic of the last ice age. A mighty glacier carved this circular basin deep into the rock.
- Natural reserve: The lake and its shoreline are under strict nature protection. Bathing, swimming, or boating is strictly prohibited to protect the sensitive flora and fauna.
Where mermaids and ghosts live
Few places in the Black Forest are as steeped in legend as Lake Mummelsee. Its name derives from the white water lilies (known locally as "Mummeln") that are said to have once bloomed here. According to an old legend, the dark bottom of the lake is inhabited by a stern lake spirit and graceful mermaids. The mermaids were allowed to descend into the valley at night to dance with the people – but they had to return to the lake before the first cockcrow. Anyone experiencing the stillness of the place today in the early morning mist can easily imagine these mystical tales.
Hiking on the roof of the Northern Black Forest: The Hornisgrinde
Lake Mummelsee is the perfect starting point for one of the most impressive hikes in the region. A well-maintained path leads steeply uphill from the lake's north shore to the... Hornisgrind, which at 1.164 meters is the highest mountain in the Northern Black Forest.
The ascent takes about 45 minutes and leads you through dense forests until you leave the tree line behind and emerge onto a wide, treeless plateau. This so-called Grinden landscape (a wet heath) is unique. Wide wooden boardwalks allow you to walk safely through the sensitive raised bog.
Two observation towers await you on the plateau. the historic Hornisgrinde Tower It offers a magnificent 360-degree panoramic view. On days with temperature inversions, you'll feel like you're floating above an endless sea of clouds. If you're a fan of spectacular high-altitude trails and want to traverse the Black Forest on long stages, you'll be crossing into the territory of true trekking pioneers. For route planning, simply consult our detailed guide to the best trails. Accommodation along the Westweg trail.
Holiday around Lake Mummelsee
Would you like to experience the awakening of nature on the lakeshore in absolute silence, enjoy Baden specialties, and leave the hustle and bustle of everyday life behind? Along the Black Forest High Road and in the surrounding valleys such as Seebach In Sasbachwalden or elsewhere you'll find fantastic accommodations. Whether a rustic Black Forest farmhouse, a comfortable holiday apartment, or an exclusive mountain hotel – find your perfect getaway here:
Culinary delights at Mummelsee: Wood-fired bread and ham
After an active day on the Hornisgrinde's heights, hunger is guaranteed to strike. Right on the shores of Lake Mummelsee is a traditional mountain hotel with its own bakery and smokehouse. Trying the fresh, still-warm wood-fired bread from the lakeside bakery is an absolute must for every visitor. Together with a hearty portion of genuine Black Forest ham and a glass of local cider, it's the perfect Baden experience.
For those on a budget or looking for souvenirs, the adjacent shop offers everything a Black Forest enthusiast could desire – from delicate wood carvings to genuine souvenirs. Cuckoo clock.
Arrival and logistics on the Black Forest High Road
The Black Forest High Road is one of the best-maintained mountain roads in Germany, open year-round. Here's how to plan your journey stress-free:
| Option | Hints and practical tips |
| By car | The B500 is from Baden-Baden Easily accessible from the north or from Freudenstadt in the south. Free parking is available directly at Mummelsee. Attention: On sunny weekends and public holidays, the parking lot is often very crowded by mid-morning – an early arrival How to Arrive it's worth it! |
| By public transport | Mummelsee is extremely well connected to public transport. Panorama bus (line 400) Several regional buses also run regularly from Baden-Baden, Achern and Ruhestein directly to the "Mummelsee" stop. |
| Free with KONUS | The ultimate holiday tip: If you stay overnight in the Black Forest, you'll receive the KONUS guest card. This makes travel on the Panorama Bus and all other regional buses completely free! |
Frequently Asked Questions (FAQ) about Mummelsee
Is it allowed to use your own SUP or boat on Mummelsee?
No, the use of private boats, inflatable boats, or stand-up paddleboards (SUPs) on Lake Mummelsee is strictly prohibited to protect the sensitive ecosystem. Those wishing to experience the water can rent a pedal boat or rowboat from the boat rental right next to the hotel and enjoy a leisurely trip on the lake.
Is the path around the lake suitable for wheelchairs and strollers?
Yes! The lakeside path is just under 800 meters long, flat, and exceptionally well-maintained. It is completely barrier-free and can be easily and safely navigated with strollers, wheelchairs, or walking aids. Only the ascent to the Hornisgrinde requires sturdy footwear and a reasonable level of fitness.
Can you visit Mummelsee in winter?
The Black Forest High Road is regularly cleared in winter, so the lake is easily accessible even in snow. A visit in winter is particularly appealing when the frozen lake lies under a blanket of snow and the Hornisgrinde plateau transforms into a glittering winter wonderland.
Are there toilets at Mummelsee?
Yes, public, well-maintained sanitary facilities are available to visitors in the area of the mountain hotel and souvenir shops.





