- From October 9 to 12.
- The Sierra de Aralar extends through Navarra and Guipuzcoan lands. A large karst massif that alternates a chaotic landscape of lapiaces, blind valleys, caves and chasms with a more bucolic landscape of extensive green meadows and beech forests of infinite colors.
4 days/3 nights/4 stages by bike
141 kilometers
2.950 m. Cumulative promotion
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