those of Vall d'Uixo Are the biggest navigable caves of Europe. A modern and spectacular lights installation highlights the singular beauty of calcareous formations, both in the roof, and in the walls and the fund of his transparent waters.
it is possible to cover on board of different crafts in a two kilometers placid trip and another 255 meters on foot. This Underground Rio dates of more than 15.000 years ago, in the period Magdaleniense.
Despite the speleologists' multiple visits, the origin of the river is not known, not the end of the cave.



