The Ulla River and its surroundings form an ecosystem of great environmental value that has several routes to discover the natural and scenic wealth of Catoira. It is a river path of about 15 km, accessible and very busy, that runs between mills, reed beds, bridges, wooden walkways, information panels, crossings, viewpoints,... and the important marshes that combine with the beauty of the historic space of the West Towers; relevant point at which to join this beautiful river walk.