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Germany

Bavaria

Upper Bavaria

Landkreis Garmisch-Partenkirchen

Mittenwald

Upper Isar River – View of the Isar loop from Mittenwald

Routes

Bike touring routes & trails

Germany

Bavaria

Upper Bavaria

Landkreis Garmisch-Partenkirchen

Mittenwald

Upper Isar River – View of the Isar loop from Mittenwald

Moderate

4.8

(1035)

5,001

riders

Upper Isar River – View of the Isar loop from Mittenwald

02:50

42.7km

410m

Cycling

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

Last updated: July 9, 2026

Tips

Temporary access restrictions

Includes segments with temporary access restrictions.

After 10.2 km for 3.06 km

Open: • April 1-October 31 (otherwise dismount required)

After 18.3 km for 2.64 km

Open: • April-October (otherwise dismount required)

After 21.8 km for 292 m

Open: • April-October (otherwise dismount required)

After 22.9 km for 2.64 km

Open: • April-October (otherwise dismount required)

After 30.5 km for 3.06 km

Open: • April 1-October 31 (otherwise dismount required)

Waypoints

Start point

Train Station

Get Directions

2.62 km

Rest area with views of the Karwendel Mountains

Highlight • Viewpoint

Great view, lots of cows, quiet dirt roads to drive.

Translated by Google •

Tip by

13.3 km

View of the Isar River and the Karwendel Mountains

Highlight • Viewpoint

The path leads upstream through the Hinterautal, framed by the mighty, steep rock faces of the Karwendelgebirge.
Here at the highest point of the tour, the valley presents itself in its full beauty.

Showing Translation

Tip by

14.0 km

View of the Isar River in the Karwendel Nature Park

Highlight • Viewpoint

Great panoramic views everywhere along the way

Translated by Google •

Tip by

15.1 km

Upper Isar River

Highlight • River

The cycle path along the upper Isar from Scharnitz to the source of the Isar is easy to ride on and leads through an extremely attractive landscape through which the turquoise and sometimes wild Isar flows.

Translated by Google •

Tip by

18.3 km

View of the Karwendel Mountains

Highlight • Viewpoint

View of the Karwendel Mountains from the Isa cycle path.

Translated by Google •

Tip by

21.9 km

Kastenalm

Highlight • Mountain Hut

Great Alm with a great offer that invites you to linger.

Translated by Google •

Tip by

30.4 km

View towards the source of the Isar

Highlight • Viewpoint

Through beautiful landscape you go up to the Isar origin.

Translated by Google •

Tip by

34.3 km

View of the Isar

Highlight • Viewpoint

The trip to the shore is definitely worth it!

Translated by Google •

Tip by

38.4 km

Riedboden

Nature Reserve

42.7 km

End point

Train Station

Way Types & Surfaces

Way Types

31.9 km

9.12 km

1.18 km

488 m

< 100 m

Surfaces

31.3 km

9.68 km

916 m

670 m

169 m

< 100 m

Elevation

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

Weather

Tuesday 14 July

26°C

14°C

86 %

Additional weather tips

Max wind speed: 9.0 km/h

to get more detailed weather forecasts along your route

Comments

August 30, 2024,Karwwndelgebirge,Isarquellen-Kaste Alm und zurück

Before that we were in the Karwendel Mountains.
We took the gondola up, walked for an hour at the top, enjoyed the view, took the gondola back down and then drove to the springs....

Showing Translation

June 5, 2023,von Mittenwald zur Isarquelle und zurück

Bike tour from Mittenwald to the source of the Isar and the cozy Kastenalm. The route, which is always slightly uphill, leads through the beautiful Hinterautal, along the Isar to its source. A short distance further is the Kastenalm. In summer, parts of the route could be very dusty. Again and again you meet friendly cows. who just want to …

Showing Translation

June 18, 2023,Tour von Mittenwald ins Hinterautal zur Isarquelle

In glorious weather, we cycled to the heart of the Karwendel today, to the Hinterautal to the source of the Isar. The Isar has three sources, it is not so easy to find them. Impressive mountain panorama with peaks up to 2700 meters high.

Showing Translation

August 22, 2022,Karrwendel Isarursprung Kastelalm

Great tour, unfortunately the first 25 km are missing 🙄 for whatever reason 🙈
The paths were great to ride with a touring bike, very varied with a view of the Isar

Showing Translation

May 26, 2022,Isarradweg Teil 1: Von Mittenwald über Scharnitz weiter zum Isarursprung bis zur Kastenalm

We start the Isar cycle path at the train station in Mittenwald.

After a short orientation drive, you go through a beautiful nature reserve to Scharnitz.

Once there, continue in the direction of the source of the Isar, but you should look closely at the signposts in the village.

Showing Translation

August 7, 2025,Radtour zum Isarursprung und zur Kastenalm mega Tour mit jähem Ende 🙈

What a dreamy tour along the Isar River to its source in Scharnitz. A postcard-perfect idyll around every corner. At the Kastenalm, I stopped for some refreshments. I wanted to enjoy the return trip to the fullest. Until, shortly after setting off, I realized I'd lost my wallet with all my credit cards, ID, and driver's license. Searching for it …

Showing Translation

June 19, 2022,👍🌞🚴‍♀️🚴‍♂️Mittenwald - Blick ins Karwendel – Isarursprung - Kastenalm

Wonderful tour in the middle of the mountains. Fantastic views always accompanied by the rushing of the young Isar.

Showing Translation

July 22, 2025,Isar 4 Mittenwald - Isarquelle - Mittenwald

This stage took us from Mittenwald to the source of the Isar River and on to the Kastenalm. Since we stayed in Mittenwald for two nights, we were also able to visit the Leutasch Gorge and explore Mittenwald. The Nature Park Center in Scharnitz is also highly recommended. It was the best stage of the entire tour. There's nothing to …

Showing Translation

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Upper Isar River – View of the Isar loop from Mittenwald

Rest area with views of the Karwendel Mountains

View of the Isar River and the Karwendel Mountains

View of the Isar River in the Karwendel Nature Park

Upper Isar River

View of the Karwendel Mountains

Kastenalm

View towards the source of the Isar

View of the Isar

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