Natural landmarks in Spain feature canyons and underground rivers

Spain features several unique geological and natural landmarks, including the Cañón del Río Lobos and the Coves de Sant Josep.

The Cañón del Río Lobos, located on the border between Soria and Burgos in Castilla y León, is a protected natural park covering approximately 11,000 hectares. The canyon, formed by limestone erosion over thousands of years, offers a 24-kilometer hiking route known as the Senda del Río. The landscape is characterized by limestone walls, caves, and forests, and is a notable habitat for griffon vultures.

In the Comunidad Valenciana, the Coves de Sant Josep in La Vall d’Uixó contains what is described as Europe’s longest navigable underground river. The tourist route covers about 1,050 meters, including an 800-meter boat trip through the cave system. Beyond its geological significance, including stalactites and stalagmites, the site holds archaeological importance due to Paleolithic engravings and paintings found within the area.