This trail can be done in both directions. In Azkoitia it starts from Plaza Balda and in Zestoa from Lili Palace. The route passes through the Izarraitz mountain range through spectacular areas.
PR Gi-137: Azkoitia – Zestoa / Zestoa – Azkoitia.
- Distance in meters: 13.430 m
- Ascent level difference: 650 m
- Descent level difference: 690 m