Cycling Highlight (Segment)
Recommended by 99 out of 100 cyclists
Location: Castro-Urdiales, Costera, Cantabria, Santander, Spain
9
01:00
15.4km
140m
2.0
(1)
23
01:15
17.6km
190m
5.0
(1)
6
02:50
33.6km
790m
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 is a slight climb, but without problems. Around there is a thick vegetation where ferns and mosses are good indicators of the humidity that surrounds this natural environment.
January 22, 2023
Here you drive through a tunnel, only for pedestrians and cyclists.
October 17, 2017
Nice to ride bike tunnel on a abandoned railway line - almost as at home by the Milseburgtunnel in the Rhön.
September 28, 2018
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Location: Castro-Urdiales, Costera, Cantabria, Santander, Spain
9
01:00
15.4km
140m
2.0
(1)
23
01:15
17.6km
190m
5.0
(1)
6
02:50
33.6km
790m