lumbier gorge was carved by the irati river during millenia

akamas avakas calm canyon carve charteredcommunityofnavarre cliff color colour creek cyprus day dead defile end erosion excursion flow gap geologicalfeature geology gorge gorgeoflumbier hike hiking irati iratiriver landscape limestone lumbier lumbiergorge mountain nature navarre outdoor outdoors pamplona pyrenees rift rim river rock sanguesa spain stone train trees tunnel vegetation water