Guided Tour of the Flysch in Zumaia and Deba

Context The guided Flysch tour in Zumaia and Deba takes place along an 8 km stretch of protected coastline, designated a UNESCO World Heritage Site. This geopark reveals dramatic rock formations that record over 60 million years of geological history, including the mass extinction event that ended the age of the dinosaurs. The salty sea breeze carries the natural scent of the ocean, enhancing the immersive experience of this rugged landscape.

The Experience During the tour, you’ll travel by boat along the coast, observing layered sea cliffs and listening to expert commentary on local geology and cultural history. Afterward, you’ll walk on marked trails to visit the hermitage of Santa Katalina and the Andutz fault, with a stop at the historic center of Mutriku. The rough texture of the rock and the constant rhythm of the waves create a deeply atmospheric and engaging environment.

For Whom This activity is ideal for people with moderate mobility who enjoy walks up to 3.5 hours and boat excursions. It appeals to geology enthusiasts, nature lovers, cultural tourists, and families with older children who can manage moderate physical activity.

Local Context The region preserves traditions such as the annual pilgrimage to the hermitage of Santa Katalina on June 24. Coastal villages maintain traditional maritime architecture, and local communities actively participate in protecting the fragile biotope, a sensitive natural habitat that demands respect and careful stewardship.