Discover the caves of San Jose whose temperature remains constant at 20°C throughout the year and which, with its current length of 2,750 metres, represents the most travelled cave in the province of Castellón and the 2nd one in the Valencian Community. It is the longest navigable underground river in Europe.

You will visit the waterway with a boat and an official guide (may not be available in English) who will tell you all the history of this place. You will also admire the cave paintings, listed as UNESCO World Heritage, the stalactites and stalagmites which make this place so unique. Finally, you will finish your visit walking in the dry gallery.