OIZ Erronka Challenge

A cyclotourist ride that traverses the URDAIBAI Biosphere Reserve, also known as the «Jabi Amorrortu Cyclotourist Ride». This event will allow you to enjoy your favorite hobby in a unique natural setting, skirting the Cantabrian Sea and climbing to the highest point of Bizkaia, with stretches as demanding as they are spectacular.

All our routes start in Gernika and revolve around Urdaibai as their main axis. We offer 3 routes tailored to all skill levels, ensuring a fun and sustainable way to enjoy the surroundings. We guarantee great organization, a fantastic atmosphere, and the chance to experience cycling tourism in a privileged environment.

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