Flix is a 30 minute drive from Miravet where you will find two areas of great natural interest: the Sebes nature reserve and the Flix Meander. These two spots are ideal for studying local flora and fauna as well as the fringing forest, which are constantly changing throughout the year. The Sebes nature reserve is located on the left-hand side of the river, upriver from the reservoir. The Flix Meander is almost 5 km long and is crowned by the castle. Along the ferry’s route, you can visit the town or enjoy the scenery by the river. The lookout point offers a magnificent view of the Sebes reed-bed and lagoon. In the summertime it fills up with the nests of great and common reed warblers, two migrating species that nest here. From here you can see all types of birdlife: the elusive moorhen, grey heron, purple heron, mallard, cormorant, and osprey in wintertime. The marsh harrier – the symbol of the reserve – is the only bird of prey that nests in the reed-bed. From here, you can enter the forested area full of white willows and poplars. From the footbridge into the forest area Duckweed floats in the canal, and in the silence you can hear the song of gurnards, turtle doves, nightingales, golden orioles and more.

The Ebro Delta (1 hour drive away) covers 320 square kilometres and is the second largest wetland area in the western Mediterranean, after the French Camargue. It has many natural habitats not common to the rest of Catalonia: large lakes of salt water (such as La Tancada) or fresh water (such as L'Encanyissada), kilometres of beaches with sand dunes (El Fangar) and salt wastelands (Erms de la Tancada, Punta de la Banya), places where underground fresh water comes to the surface (Els Ullals), shallow bays (El Fangar or Els Alfacs), riverbank woods and fluvial islands that, together with the ecosystems created by man - rice fields and salt pans - constitute a unique landscape of great natural wealth. This diversity of ecosystems and flora and fauna has led to the protection of a large part of the Delta and in 1983 it was declared a "natural park". It is in fact an ornithological paradise where you can see more than 300 species of birds including flamingos.