The Pena Molexa Nature · Narón, Ferrol, A Coruña A Pena Molexa is a granite formation of unusual appearance in the parish of Vilasuso, in Narón, held by popular tradition to be a boulder laden with legends, although ethnological studies consider it one of the most singular megalithic monuments in Europe: a disc about five metres in diameter, balanced on a group of large stones by means of a wedge-and-lever system, with the contact surfaces fitted together like a key and lock. It is linked to the vanished rite of the Barge of the Sun and the Moon. No archaeological excavation has been carried out on it, and the precision of its stones makes it unlikely to be a simple eroded natural formation. It rises on a hill dotted with mámoas and castros. Photo: Deparpor (CC BY-SA 3.0) What to see and do in Narón