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Valverde Tunnel – Alto de LA-1 (395 m) loop from Castro-Urdiales

Valverde Tunnel – Alto de LA-1 (395 m) loop from Castro-Urdiales

Hard

riders

Valverde Tunnel – Alto de LA-1 (395 m) loop from Castro-Urdiales

03:41

43.8km

1,080m

Gravel riding

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: April 3, 2026

Waypoints

Start point

Bus stop

Get Directions

945 m

Bosque de Valverde

Forest

980 m

Valverde Tunnel

Highlight (Segment) • Structure

A 400-meter tunnel that connects Mioño with Castro Urdiales, crossing the slopes of the Cueto hill. It is used by both pedestrians and cyclists. From Castro Urdiales to Mioño there …

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1.58 km

Valverde Tunnel

Highlight • Structure

Incredible path for pedestrians and cyclists (with one lane for each direction) along the old train route. It is 397 meters long and takes two minutes or less to cycle through.

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16.1 km

Old Castro-Urdiales Railway Tunnel

Highlight • Structure

The old railway tunnel that linked Castro-Urdiales and Translaviña was an enormous project in its day.

Today it serves so that you can enjoy a spectacular tour among nature on wheels.

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29.6 km

Menhir of Alto de Anguía

Highlight • Monument

At the side of the path and at the foot of the Alto de Anguia is this menhir surrounded by a beautiful landscape, an ideal place to take a break and enjoy the views.

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34.3 km

Alto de la Maya

Highlight • Mountain Pass

It has a length of 2.3 km, an altitude of 162 meters and an average gradient of 6.39%.

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34.4 km

Alto de LA-1 (395 m)

Highlight • Mountain Pass

34.7 km

Alto de la Mina

Highlight • Viewpoint

A little respite enjoying the views of Eastern Cantabria before continuing with the route.

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36.2 km

View of Val Helguera

Highlight (Segment) • Viewpoint

Quiet climb to Alto de la Mina.
Gravel road with moderate slope

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43.8 km

End point

Bus stop

Way Types & Surfaces

Way Types

29.3 km

4.67 km

3.69 km

3.22 km

2.86 km

< 100 m

Surfaces

32.1 km

7.28 km

4.11 km

325 m

Elevation

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

Highest point (690 m)

Lowest point (0 m)

Weather

Monday 25 May

34°C

19°C

0 %

Additional weather tips

Max wind speed: 26.0 km/h

to get more detailed weather forecasts along your route

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

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Valverde Tunnel – Alto de LA-1 (395 m) loop from Castro-Urdiales

Valverde Tunnel

Valverde Tunnel

Old Castro-Urdiales Railway Tunnel

Menhir of Alto de Anguía

Alto de la Maya

Alto de LA-1 (395 m)

Alto de la Mina

View of Val Helguera

Nearby routes

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