The waterfalls of Fervencedo Nature · Aranga, Betanzos, A Coruña Image of Aranga, not of the place itself. The river das Fervenzas, also called the Bexo, cuts down here before flowing into the Mandeo and forms several falls of more than five metres. They run along a stretch of very dense riverside woodland in the interior of the concello. Photo: One2 (CC BY-SA 4.0) What to see and do in Aranga