Sakoneta, Flysch de Zumaia, spectacular sea cliffs, rock beach, brooding sky, scuttling crabs.

This is one of most amazing geological formations I’ve ever seen. These vertical layers run for 8 kilometres along the Basque coast, each a rock page, forming a book covering 60 million years of planet’s history. Created when Iberia crashed into Europe and things went all squishy.

(I also learnt here crab in Basque is karramarro).