Ravine of the Mills of Ibi Nature · Ibi, L'Alcoià, Alicante The Barranco de los Molinos, a natural site of great environmental value located in the Sierra del Teixereta, was carved out by the erosion of the River Les Caixes in Ibi. It preserves the remains of old flour mills and paper factories, and today has a recreational and climbing area. Photo: John Doe (CC BY-SA 4.0) What to see and do in Ibi