Venture deep into the earth and enjoy an authentic underground tourism experience at the Costanaza Mine, located in Logrosán. This exciting guided tour invites you to discover the region’s rich mining heritage through a fascinating journey that takes you all the way from the surface.

Explore the Phosphate Interpretation Centre, the laboratory and let yourself be moved by the poignant audiovisual presentation on the history of mining. You’ll also walk through a 19th-century tunnel and be amazed by the luminescent minerals in the powder magazine.

The highlight comes during the descent down the María Well leading to two levels of authentic galleries, culminating in the magnificent Vicente Sos Bayna Geological Museumt. A perfect adventure for the whole family!