Cortalet Pond Nature · Castelló d'Empúries, Alt Empordà, Girona The Cortalet lagoon is a large artificial pond built on former meadows beside the information centre of the Aiguamolls de l'Empordà natural park, in Castelló d'Empúries, mainly to make bird-watching easier: its interest is chiefly ornithological. The most abundant plant community is the reed bed, though its margins also feature habitats of Community interest such as Mediterranean halophilous grasslands and rush beds or glasswort communities. The water surface is maintained through forced flooding, fed in part by treated water from Empuriabrava after passing through the Estany Europa. Fitted with trails, panels and hides, it is the part of the park that draws the most visitors. Photo: Mikipons (CC BY-SA 3.0) What to see and do in Castelló d'Empúries