Trail of el Agua y lavadero romano de Vilanova d'Alcolea Activity · Vilanova d'Alcolea, La Plana Alta, Castellón Image of Vilanova d'Alcolea, not of the place itself. A route of some seven kilometres taking in the washing place in the Roman tradition at Vilanova d'Alcolea and the monumental black poplar of l'Assut, running alongside old irrigation systems that connect with the Via Augusta towards the Roman station of Ildum. Photo: Sanbec (CC BY-SA 3.0) What to see and do in Vilanova d'Alcolea