Running around Castro-Urdiales is one of the best ways to explore more of this region. To help you discover the most beautiful places to run, we’ve reviewed our full collection of routes around Castro-Urdiales—and are proud to present the best running trails. Click on any of the routes for more details and browse real tips and photos uploaded by other runners.

Ojo del Diablo – circular from Sonabia via the Coastal Path	Expert 01:17 6.95km
Port of Castro Urdiales – Castro Urdiales Sign loop from Urbanización Paraíso VIII	Intermediate 00:53 8.48km
Port of Castro Urdiales – Castro Urdiales Sign loop from Grupo San Pelayo	Intermediate 00:43 6.87km
Port of Castro Urdiales loop from Ostende	Expert 02:05 16.3km

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Map data © OpenStreetMap contributors
1
1
Ojo del Diablo – circular from Sonabia via the Coastal Path
01:17
6.95km
11:02/km
420m
430m
Expert
18
Expert run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
Map data © OpenStreetMap contributors
2
2
Port of Castro Urdiales – Castro Urdiales Sign loop from Urbanización Paraíso VIII
00:53
8.48km
6:12/km
40m
40m
Intermediate
147
Intermediate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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Map data © OpenStreetMap contributors
3
3
Port of Castro Urdiales – Castro Urdiales Sign loop from Grupo San Pelayo
00:43
6.87km
6:16/km
40m
40m
Intermediate
170
Intermediate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
Map data © OpenStreetMap contributors
4
4
Port of Castro Urdiales loop from Ostende
02:05
16.3km
7:39/km
680m
680m
Expert
55
Expert run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.