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Hiking trails & Routes

Ruins of Alt-Regensberg Castle – Katzensee (Lake Katzensee) loop from ETH Zürich, Hönggerberg

Hiking trails & Routes

Ruins of Alt-Regensberg Castle – Katzensee (Lake Katzensee) loop from ETH Zürich, Hönggerberg

Easy

4

hikers

Ruins of Alt-Regensberg Castle – Katzensee (Lake Katzensee) loop from ETH Zürich, Hönggerberg

01:38

6.25km

40m

Hiking

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: June 18, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Chatzesee, Chräenriet

Waypoints

A

Start point

Bus stop

Get Directions

1.06 km

Fressenhürst

Forest

2

2.46 km

Alt-Regensberg Ruins

Highlight • Castle

The castle goes back to the high nobility Lütold von Affoltern and was probably built as the ancestral seat of the Lords of Regensberg around 1040 (Wikipedia).

Translated by Google •

Tip by

3

2.56 km

Ruins of Alt-Regensberg Castle

Highlight • Castle

It was my first time here, actually by accident, and I never saw a signpost anywhere.

Translated by Google •

Tip by

4

3.45 km

The Oak Seedling of 1778

Highlight • Natural Monument

The story of an oak seedling is beautifully presented, from its birth in 1778 to 1999 when Lothar swept across the country.
It's a shame that it doesn't say anywhere who built this beautiful complex.

Translated by Google •

Tip by

5

4.16 km

Katzensee

Highlight • Lake

Very nice little lake with a circular path is nice to go around

Translated by Google •

Tip by

6

4.31 km

Katzensee Forest House

Highlight • Restaurant

Beautiful garden at the forest house. The apple strudel with warm vanilla sauce and cream is recommended 😋

Translated by Google •

Tip by

7

4.33 km

Katzensee Steam Railway

Highlight • Structure

A beautiful garden restaurant belongs to the steam train

Translated by Google •

Tip by

8

4.46 km

Katzensee (Lake Katzensee)

Highlight • Lake

Every year, once or twice a year, we have to go around the lake.

Translated by Google •

Tip by

9

5.30 km

Katzensee Highway Overpass

Highlight • Bridge

B

6.25 km

End point

Bus stop

Way Types & Surfaces

Way Types

4.90 km

795 m

295 m

210 m

Surfaces

2.85 km

1.92 km

1.18 km

186 m

< 100 m

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Elevation

Elevation

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

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Weather

Powered by Foreca

Sunday 12 July

32°C

16°C

13 %

Additional weather tips

Max wind speed: 5.0 km/h

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