In the Pyrenees are les Gorges de la Fou (http://www.Ville-arles-sur-tech.Fr/gorgesdelafou.Htm), 2 km d'Arles-Sur-Tech from Prats-de-Mollo and Ceret . It is the world's narrowest gorge carved on stone by river erosion "Fou" (an old Catalan palara meaning "precipice"). This gun has a depth of 200-250 meters at a stretch, is very narrow reaching an amplitude less than one meter. There are legends that some evil genuises have lived here. It is 1739 meters total in length. To visit costs 6 euros, and occurs over a 1500 meter metal walkway. You must wear a helmet when you enter in case a landslide occurs. The slope of the path is 157 and the average time of the visit is 1 hour and 30 minutes.
St. Mary's Abbey has an early Christian sarcophagus which dates back to the 4th Century. It is filled with water in the church despite numerous scientific reports that deny this phenomenon. This water is distributed free each year to the attributes of the virtues and the faithful who come to visit this place because it is considered to have special powers.