My tip“Go down to Itzurun or Algorri beach at low tide to see the layers up close; check the tide timetable.”
Vertical rock layers that tell 60 million years of Earth's history on the cliffs of the Bay of Biscay, part of the Basque Coast Geopark. A coastal path runs above the cliffs.
Easy to reach, needs a car
Start from the San Telmo church in Zumaia (parking in the town). Out and back, or a tourist boat in summer. Euskotren train from San Sebastián.
Distance
4 km · 120 m climb · 1:30–2 hours
Address
20750 Zumaia, Gipuzkoa