Bank of the Ésera river Nature · Villanova, La Ribagorza, Huesca Image of Villanova, not of the place itself. The Ésera comes down from the glaciers of the Maladeta and runs through the valley of Benasque before cutting downstream into the gorge of Ventamillo. At Villanova it flows along a valley floor of hay meadows and riverside woodland, with more than 1,100 mm of rain a year. Photo: Basotxerri (CC BY-SA 4.0) What to see and do in Villanova