Stage 3 of 8
Tolosa → Zalduondo
32 km
10.7 hours
Mountainous
A long mountainous stage crossing the San Adrián tunnel, a natural rock passage that was the main medieval route between Castile and Europe. Spectacular Basque mountain landscape with beech forests and high-altitude pastures. Zalduondo is an Álavan hamlet with a Renaissance palace.
Points of interest
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