Fluvià River through the Pla de l'Estany Nature · Serinyà, Pla de l'Estany, Girona The middle stretch of the River Fluvià, one of the best-preserved rivers in Catalonia because it has no large reservoirs, which crosses the municipal districts of Serinyà, Crespià, Esponellà and Vilademuls. Photo: Viquipèdia / Wikimedia Commons (CC BY-SA) What to see and do in Serinyà