Guided Tour of El Soplao Cave in Cantabria

Context El Soplao Cave, located at 540 meters above sea level in the Sierra de Arnero, Cantabria, is a natural underground cavity stretching about 20 km, of which 4 km are open to visitors. The cave is renowned for its rare geological formations such as helictites and draperies, and for preserving a significant heritage of zinc and lead mining from the 1800s to the 1900s. The cool, humid air envelops the walk, which begins from the external station and continues on foot. The Experience For about one hour, you’ll walk through accessible galleries guided by an expert who explains the origin of unusual formations like dog-tooth crystals, stalactites, and other mineral structures. The gentle sound of dripping water and natural echoes accompany the journey, as you observe the texture and color of calcite formations. The tour ends at the tourist complex, where you can visit the gift shop and a permanent exhibition of contemporary sculpture. For Whom This tour is suitable for families with children aged 4 and up, people with mild mobility limitations who can walk short distances, and those interested in geology or industrial heritage. It is not recommended for individuals with severe claustrophobia or those with limited mobility who cannot walk unassisted. Local Context El Soplao is situated in a natural landscape offering views of the Cantabrian Sea and the Picos de Europa. The local community keeps mining history alive and provides tourist services such as a café and recreational areas, integrating the visit into the cultural and scenic identity of Cantabria.