The Coves de`s Hams consist of a cave system with stalactites and stalagmites and an underground lake. The caves were discovered in the early 20th Century by Pedro Caldentey and the name of the caverns comes from the stalactites which are said to resemble fish hooks. Visitors can take a guided tour through the caves which are lit to emphasise their beauty. There is also a concert by musicians playing from a boat on the underground lake.