Puente Internacional del Guadiana Historical milestone · Ayamonte, Costa Occidental, Huelva Suspension bridge that has linked Ayamonte with Vila Real de Santo António (Portugal) across the mouth of the Guadiana since 1992, replacing the historic ferry crossing between the two banks. 1992 Photo: RHaworth (Wikimedia Commons) (CC BY-SA 4.0) What to see and do in Ayamonte