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DonauWelle: Donauversickerung (Danube Sinkhole) - Hiking in the Donautal

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Hiking trails & Routes

DonauWelle: Donauversickerung (Danube Sinkhole) - Hiking in the Donautal

Moderate

4.7

(365)

1,192

hikers

DonauWelle: Donauversickerung (Danube Sinkhole) - Hiking in the Donautal

03:41

13.1km

270m

Hiking

On this route, you'll experience something unique in the world: Between Immendingen and Möhringen, the Danube simply disappears from the surface. On approximately 155 days a year – in spring and autumn – the river sinks completely, allowing you to hike through the riverbed dry-footed.

The water seeps away, flows…

by Donaubergland

Last updated: May 18, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Naturpark Obere Donau

Waypoints

Start point

Parking

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440 m

Danube Sinkhole

Highlight (Segment) • Natural Monument

Right here, the Danube disappears completely underground for about 155 days, flows through a cave system, and re-emerges in Aach (the Aach spring is the largest spring in Germany). The …

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6.05 km

Michelsloch sinkhole

Highlight • Natural Monument

A large sinkhole; there are several more such sinkholes in the area. They are formed by the karst rock, which is partially undermined – this can lead to the caves collapsing and thus to these craters.

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7.35 km

Forest path in Naturpark Obere Donau

Highlight • Trail

Nice path through the forest.

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9.10 km

Höwenegg Crater Lake

Highlight • Lake

Also called the "Blue Eye" of the Hegau.
Unlike other volcanic relics and maars in the Swabian Alb, the "Höwenegg" is part of the Hegau volcanism. The main crater is …

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13.1 km

End point

Parking

Way Types & Surfaces

Way Types

9.01 km

3.36 km

385 m

340 m

Surfaces

5.93 km

4.83 km

1.29 km

950 m

< 100 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Weather

Saturday 18 July

22°C

12°C

30 %

Additional weather tips

Max wind speed: 13.0 km/h

to get more detailed weather forecasts along your route

Comments

July 5, 2025,Donauversinkung (DonauWelle) - Tour ab Bahnhof Immendingen 05.07.25

By train, change in Singen, to Immendingen. From there, through beautiful forests, a short stretch along the dry Danube and to the Höwenegg crater lake, then through forests again and back to the train station.

Gorgeous weather with temperatures between 24°C and 26°C.

Showing Translation

July 23, 2023,Immendingen Donauversinkung Vulkan Höwenegg🌋

The starting point of the hike is the parking lot at the Donauverinkung in Immendingen. Here you can currently walk along the completely dry Danube river bed. An extraordinary natural phenomenon when you consider how much water the Danube has on some days. Further through the forest and past meadows and fields you will come across dolien which are also …

Showing Translation

May 11, 2024,Wanderung zum Höwenegg Kratersee.

Today's hike took us to the Höwenegg crater lake. The start and finish was the kiosk at the Donauversinkung in Immendingen. A really beautiful tour.

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May 29, 2025,Immendingen - Höwenegg Rundweg

A lovely, relaxed tour starting at Nina's Ess Art.
Past the Danube sinkhole, through the forest, up and down, and stopping in Hattingen for a delicious sausage salad and a sour shandy...
The highlight was the Höwenegg crater.
But surprisingly, there were few people there on Father's Day.

Showing Translation

August 22, 2024,DonauWelle: Donauversinkung – Premiumweg DonauWellen - Wandergenuss im Donaubergland 🌊🥾 - 🔁 Von Immendingen - LKR. Tuttlingen aus 🥾

Hello!

This is a beautiful hike 🥾 on the DonauWelle Donauversinkung premium hiking trail from Immendingen in the district of Tuttlingen.

Best wishes, your

Mammut Frank

At the start and end point there is a great place to rest and have a drink with a lovely terrace at Nina's Ess Art.

Price/performance is still right here 👍

ninasessart.com

Tour description:

Showing Translation

September 27, 2023,Wanderung Höwenegg - Donauversinkung

Move start and end point to Hattingen train station.

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May 28, 2024,Donauwelle - Donauversickerung

We are on our bikes again from Triberg in the Black Forest to Regensburg. Our motto is cycling and hiking.

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December 12, 2024,🥾 "Donauwelle" Donauversinkung Immendingen #5von6, J.S.

"Donauwelle"
Danube sinkhole Immendingen
Start: hiking car park on Hattinger Weg.
🎄 Cyclist's campsite
🎄Danube sinkhole (too much water in the
Danube to sink)
🎄 Hattingen.
🎄Doline Michelsloch.
🎄 Rest area with a view of the Hegau mountains (fog, no mountains)
🎄 Barbecue area Mauenheimer.
🎄 Höwenegg crater lake.
🎄Höwenegg (798m)
🎄 Forest avenue
Great hike on thick, narrow forest …

Showing Translation

August 23, 2019

On this route, you'll experience something unique in the world: Between Immendingen and Möhringen, the Danube simply disappears from the surface. On approximately 155 days a year – in spring and autumn – the river sinks completely, allowing you to hike through the riverbed dry-footed.
﻿
The water seeps

Translated by Google •

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DonauWelle: Donauversickerung (Danube Sinkhole) - Hiking in the Donautal

Danube Sinkhole

Michelsloch sinkhole

Forest path in Naturpark Obere Donau

Höwenegg Crater Lake

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