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Mountain biking trails

Church of Castillon – 3 caves to discover loop from Arrout

Mountain biking trails

Church of Castillon – 3 caves to discover loop from Arrout

Hard

7

riders

Church of Castillon – 3 caves to discover loop from Arrout

05:05

47.9km

1,500m

Mountain biking

Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike. The starting point of the route is accessible with public transport.

Last updated: April 24, 2026

Tips

Includes very steep uphill segments

You may need to push your bike.

After 25.4 km for 1.27 km

After 31.1 km for 58 m

Waypoints

A

Start point

Bus stop

Get Directions

1

2.49 km

Church of Castillon

Highlight • Religious Site

Go visit the Church that stands on the hill. You will have a great overview of the area and some time to catch your breath from the steep uphill

Tip by

2

13.4 km

Bonac

Highlight • Settlement

The small village lies idyllically in the French countryside. Surrounded by green meadows, dense forests, and high mountains, it is a peaceful starting point for hikes. The traditional architecture and relaxed atmosphere give the place a special charm.

Showing Translation

Tip by

3

22.3 km

Technical trail below the Arech hut

Highlight (Segment) • Viewpoint

Here you have a long trail that combines beautiful views of the mountain massif and technical sections.

Translated by Google •

Tip by

4

30.7 km

3 caves to discover

Highlight • Other

I cannot give the exact position of the 3 caves on the “GR de Pays Tour du Biros”. They were short, medium and long. The longest one can be seen …

Translated by Google •

Tip by

B

47.9 km

End point

Bus stop

Way Types & Surfaces

Way Types

24.8 km

15.3 km

6.63 km

1.16 km

Surfaces

18.3 km

17.3 km

7.34 km

4.56 km

436 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

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Thursday 16 July

25°C

18°C

-- %

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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