View of Talheim – Danube Sinkhole loop from Wurmlingen Mitte

Bike touring routes & trails

View of Talheim – Danube Sinkhole loop from Wurmlingen Mitte

Hard

4.7

(454)

1,762

riders

View of Talheim – Danube Sinkhole loop from Wurmlingen Mitte

04:17

68.2km

460m

Cycling

Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: September 26, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Naturpark Obere Donau

Naturpark Südschwarzwald

Geopark Schwäbische Alb

Waypoints

Start point

Train Station

Get Directions

12.3 km

View of Talheim

Highlight • Viewpoint

Behind it rises the ridge of the Lupfen, also called "King of the Baar" 🫅

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27.9 km

Here in the Princely Palace Park is the source of the Danube. But not only the origin of the Danube is worth seeing, but also the Princely Fürstenberg Palace and the pretty city center, where many cozy cafes and restaurants invite you to linger.

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32.9 km

View of the Danube near Pfohren

Highlight • Viewpoint

Very nice

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49.2 km

Zimmern Covered Wooden Bridge over the River Danube

Highlight • Bridge

The roofed wooden bridge of Zimmer was built for the first time in 1784.
Most recently in 2015/16 after a fire.
Source: immendingen.de/Startseite/Tourismus+_+Freizeit/Gedeckte+Holzbruecke.html

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52.1 km

Danube Fish Pass in Immendingen

Highlight • River

Interesting

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53.2 km

Danube Sinkhole

Highlight • Natural Monument

The seepage point is a little further downstream. It's interesting to see how the water simply disappears underground.

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54.4 km

Danube Cycle Path at Immendingen

Highlight • Cycleway

Practically newly paved bike path. It doesn't get any better!

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63.9 km

Old Bridge over the Danube in Tuttlingen

Highlight • Bridge

This a wonderful bucolic landscape and right near the bridge you cna find nice cafés, bakeries and the Golem bar, great place to appreciate the view

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68.2 km

End point

Train Station

Way Types & Surfaces

Way Types

24.4 km

13.9 km

13.1 km

12.5 km

4.37 km

< 100 m

Surfaces

61.0 km

5.76 km

1.10 km

461 m

Elevation

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

Highest point (850 m)

Lowest point (640 m)

Weather

Sunday 4 October

21°C

12°C

0 %

Additional weather tips

Max wind speed: 5.0 km/h

to get more detailed weather forecasts along your route

Comments

May 13, 2023,Donauradweg Etappe 1 Donaueschingen-Tuttlingen

Started in Donaueschingen today and drove to Hausen im Tale. Somehow my watch always saved when I pressed pause for a longer time, so 3 tours 🤔 It's on beautiful bike paths, away from traffic, in very good condition, mostly flat, always along the beautiful Danube. The signage is also exemplary 👍

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June 16, 2022,Tag 1: von Donaueschingen nach Tuttlingen - Donauradweg-

So from here we start what we planned to do, namely the first two most beautiful stages (so they say) on the young Danube. Here Donaueschingen and the Danube seepage is interesting.

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July 12, 2026,Donau Tour 48 Tuttlingen->Donaueschingen

Today we are on the trail of the Danube Sinkhole. And: the last stage!

This river is simply mysterious. On the stretch between Immendingen and Möhringen, the Danube disappears into karst fissures and caves, and on 150 to 200 days a year, the riverbed is dry on this section. 3/4 of the water flows underground into the Aachtopf, the source …

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July 7, 2024,1.Etappe auf dem Donau Radweg, Donaueschingen nach Tuttlingen

The km stone says: 2779 km to the mouth and 898 km through Germany.

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May 3, 2023,Erster Tag an der Donau entlang

Unfortunately left very late. Today's destination was Mühlheim an der Donau.
It's just a pity that of the 50 km with 40 km strong headwind slowed us down.
But otherwise a super nice route. Hardly on roads and mostly on bike paths.

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May 28, 2022,Etappe 1 Von Donaueschingen nach Mühlheim – Donau-Radweg

A very nice route. Except for 3 points also very well signposted. Fantastic landscape and plenty of opportunities for rest areas (with and without food).

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