Routes

Planner

Features

Updates

App

Login or Signup

Get the App

Login or Signup

Login or Signup

Routes
Mountain biking trails
Spain
Santander
Cantabria
Costera
Arnuero

San Martín Fort loop from Isla Playa

Hard

4.2

(15)

86

riders

San Martín Fort loop from Isla Playa

02:30

38.0km

360m

Mountain biking

Hard mountain bike ride. 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 right next to a parking lot.

Last updated: March 9, 2026

Tips

Includes a segment in which cycling is not permitted

After 31.0 km for 131 m

Waypoints

A

Start point

Parking

Get Directions

4.49 km

Casa-palacio de Cilla

Castle

2

18.2 km

View of Dueso Prison and the Sea

Highlight • Viewpoint

Impressive cage of sparrows and doves

Translated by Google •

Tip by

20.2 km

Viewpoint

Viewpoint

4

21.1 km

San Martín Fort

Highlight • Historical Site

Stunning views of Laredo, and a very interesting construction.

Translated by Google •

Tip by

5

21.7 km

Church of Our Lady of the Virgin of Puerto

Highlight • Religious Site

Small hermitage in the eastern part of the town.

Translated by Google •

Tip by

B

38.0 km

End point

Parking

Loading

Way Types & Surfaces

Way Types

12.1 km

9.64 km

5.71 km

4.44 km

3.23 km

2.89 km

Surfaces

20.2 km

11.0 km

5.33 km

588 m

542 m

410 m

Sign up to see more specific route details

Sign up for free

Elevation

Elevation

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

Highest point (130 m)

Lowest point (0 m)

Sign up to see more specific route details

Sign up for free

Weather

Powered by Foreca

Monday 25 May

29°C

18°C

0 %

Additional weather tips

Max wind speed: 21.0 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.

Save

Edit route

Download GPX

Move start point

Print

Share

Embed on a website

Report an Issue

Nearby routes

Hard

3.0

36

Parque Natural de las Dunas de Liencres y playa de La Arnía – circular por los acantilados

01:48h

23.6km

260m

Explore
RoutesRoute plannerFeaturesHikesMTB TrailsRoad cycling routesBikepackingSitemap
Download the app
Follow Us on Socials

© komoot GmbH

Privacy Policy