Birdwatching at the Aiguamolls de l'Empordà Activity · Castelló d'Empúries, Alt Empordà, Girona Image of Castelló d'Empúries, not of the place itself. In the Aiguamolls de l'Empordà natural park (Castelló d'Empúries, Alt Empordà), covering 4,722.7 hectares, 329 bird species have been recorded, of which 82 nest there regularly. Guided outings with telescopes set out from the Cortalet information centre to observe both migratory species, with the largest passage during the second half of April and the first days of May, and wintering species from northern and central Europe, among which ducks stand out. Several of the park's viewpoints are former rice-storage silos converted for birdwatching. Photo: JOZUAL (CC BY-SA 4.0) What to see and do in Castelló d'Empúries