A stroll through the heart of the Geopark.
Walk through the hidden valley of Olatz in Mutriku, carved out by water erosion and flanked by towering limestone pyramids. Follow the surprising meander of the river and discover the main features created by karst modelling. This is a truly unique and authentic landscape. During the walk you will see some exceptional Basque farmhouses, such as Goienetxe, where you will meet the flock and learn about cheese-making, followed by a cheese tasting with a delicious glass of local txakoli wine.