Bommer Pond – Napoleon Tower Hohenrain loop from Ermatingen

Mountain biking trails

Bommer Pond – Napoleon Tower Hohenrain loop from Ermatingen

Moderate

4.9

(18)

riders

Bommer Pond – Napoleon Tower Hohenrain loop from Ermatingen

02:35

34.7km

420m

Mountain biking

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary. The starting point of the route is accessible with public transport.

Last updated: August 10, 2026

Tips

Includes segments that go up or down a series of steps

You may need to carry your bike.

After 27.7 km for 11 m

Waypoints

Start point

Train Station

Get Directions

3.31 km

View of Reichenau Island

Highlight • Viewpoint

Very nice view of Konstanz and Reichenau

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7.17 km

Seerücken Trail in Thurgau

Highlight • Trail

Very beautiful meadows and forest paths. Also ideal for normal bicycles with narrow tires.

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10.2 km

Bommer Pond

Highlight • Lake

Nice cozy resort, well-kept barbecue area including free wood

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19.2 km

Altenburg Castle Ruins

Highlight • Castle

The Altenburg is the ruin of a hilltop castle in the Thurgau municipality of Märstetten in Switzerland. It is the oldest stone castle in the canton of Thurgau and is …

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27.7 km

Napoleon Tower Hohenrain

Highlight • Viewpoint

The tower has a somewhat special design: the 208-step spiral staircase is protected by wooden walls, the slats of which are arranged in such a way that a view is …

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28.7 km

View of the Alps

Highlight • Viewpoint

Yes you have a great mountain view, depending on the weather

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30.2 km

Pond with water lilies in the Thurgau forest

Highlight • Lake

Very nice small fine pond in the forest

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31.5 km

Flow Trail in the Lake Constance Forest

Highlight • MTB Park

Nice trail with a few roots and a great flow

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34.7 km

End point

Train Station

Way Types & Surfaces

Way Types

24.7 km

4.96 km

2.83 km

1.18 km

824 m

269 m

Surfaces

10.4 km

9.99 km

8.98 km

3.72 km

1.50 km

< 100 m

Elevation

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

Highest point (610 m)

Lowest point (400 m)

Weather

Thursday 8 October

16°C

8°C

16 %

Additional weather tips

Max wind speed: 17.0 km/h

to get more detailed weather forecasts along your route

Comments

March 18, 2023,MTB Rundtour zum Schloss Altenklingen bei Kaiserwetter

Partly traily round trip in glorious weather to Altenklingen Castle, I left out the Altenburg ruins that belonged to it today. If you want to learn more about it, I'll link a video at the end.

The oldest castle of the Lords of Klingen in the vicinity was the Altenburg near Märstetten, which was abandoned around 1200 and is now …

Showing Translation

May 2, 2024,MTB Rundtour zur Ruine Altenburg und auf dem Seerücken

Today, in sunny weather, we went back to the Seerücken and to the great forests according to the motto: "Feel the healing power of the forest to open your senses and draw energy".

Once in Kemmental, the trail leads to the Schleifenrain ruins and then on to the Altenburg ruins, one of the oldest ruins in the canton of Thurgau. …

Showing Translation

March 27, 2022,Trailige MTB Seerückenrundtour mit viel Bärlauch bei Kaiserwetter

I'll start today's tour description with a quote: "When the well is dry, you only appreciate the water" and so the trails in the region are currently "fart-dry".

Today there was a lot of movement in the woods and so I was drawn away from the mainstream on trails and rather unknown paths and that fitted perfectly.

Showing Translation

February 18, 2024,Nebelige Rundtour nach Märstetten ab Ermatingen

I'll start with a saying: "The main reason for STRESS is daily contact with idiots". Before I describe today's tour, I will discuss a draft law that is boldly called "Komoot Paragraph" 33.

I will quote briefly: “What is new and confusing is the so-called “Komoot paragraph” 33 of the speaker template, which only allows the digital recording of routes …

Showing Translation

November 21, 2022,3 Ruinen MTB Rundtour Castell - Schleifenrain - Altenburg mit viel Panorama und Geschichte

I'll try to be brief today, and a phrase comes to mind: "Briefness is the spice" :-)

"The sweetness lies in brevity" comes from Shakespeare's Hamlet. The play about the Danish prince was first performed in 1603. And in the piece there is the following text passage: "Because brevity is the soul of wit, prolixity is the body and expression, …

Showing Translation

June 23, 2023,Lässige MTB Rundtour etwas ins Hinterland und zum Schloss Altenklingen mit schönem Panorama

Today a very spontaneous, casual MTB tour without a lot of frills and with pleasant temperatures. The Bommer Weiher looked special today, no bikers - no hikers and it has really great water lilies.

Something historical about Altenklingen Castle ........

Showing Translation

November 6, 2021,Farbenprächtige MTB Rundtour zum Bommer Weiher - Ruine Altburg - lüsternen Napoleonturm

After yesterday's energetic hike, I did a bike tour today to dive deep into the woods again to sharpen my senses, just like Shinrin-yoku. The sensory impressions also include the scents with which plants communicate with each other and with animals. Several thousand substances, the terpenes, belong to the fragrances. A well-known terpene is limonene, which is also found in …

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May 22, 2023,2 Burgruinen Trailtour mit Geschichten und Anekdoten ab Ermatingen

I'm trying to be shorter today, and a phrase comes to mind: "Briefness is the spice" 😊

"The sweetness lies in brevity" comes from Shakespeare's Hamlet. The play about the Danish prince was first performed in 1603. And in the piece there is the following text passage: "Because brevity is the soul of wit, prolixity is the body and expression, …

Showing Translation