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Oiz Challenge: Gran Fondo Oiz Erronka Challenge


Long route of the cyclist Reto Oiz that is held every year in the month of June in the territory of Urdaibai.

A great challenge of 164 kilometres and 3,120 metres of accumulated elevation gain that you will have to face on continuous slides and, as a final touch, the ascent to the top of Mount Oiz, with ramps of up to 24%.

A challenge, without a doubt, only within the reach of the most prepared.

The Route

Distancia (Km)
Desnivel (m)

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