The Engelberger Aa (or Engelbergeraa) is a river in Switzerland. It rises west of the Surenen Pass in the canton of Uri, flows through the valleys of Engelberg (Obwalden) and Nidwalden and finally empties into Lake Lucerne (also known as Lake Lucerne). As a tributary of the Reuss, it contributes to the drainage of the lake. The river's source is at an altitude of about 2,200 metres, and it falls rapidly, taking in water from various mountain streams.

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Gabi

July 8, 2023

Hiking

Engelberger Aa is a 38 km long mountain river in the central Swiss cantons of Uri, Obwalden and Nidwalden. In Nidwalden the river is also called Aawasser.
Source: Wikipedia

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Pedro

September 18, 2025

Hiking

Beautiful hike

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Routes here

Best routes to Engelberger Aa River

4.7

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1,027

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1. Little Patagonia Round Trip – Engelberg

9.68km

03:24

10m

750m

Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.

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Moderate

4.8

(51)

245

hikers

2. Aawasser Surenental – Engelberg

24.7km

08:38

1,040m

Hard hike. Very good fitness required. Mostly accessible paths. Sure-footedness required.

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Hard

5.0

(6)

hikers

3. Stäuber Waterfall – Surenen Pass loop from Bründler

19.1km

07:34

1,080m

Hard hike. Very good fitness required. Mostly accessible paths. Sure-footedness required.

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Hard

Details

Informations

Elevation 1,260 m

Weather

Saturday 21 February

6°C

-2°C

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Location: Attinghausen, Uri, Zentralschweiz, Switzerland

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Engelberger Aa River

1. Little Patagonia Round Trip – Engelberg

2. Aawasser Surenental – Engelberg

3. Stäuber Waterfall – Surenen Pass loop from Bründler

Other Popular Places to Check Out

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