We enter the natural park via Platja de l’Arenal and skirt Bassa de les Olles, the smallest lagoon in the Delta, where we can already observe its rich fauna with birds flying over the rice fields. The path continues along perfect, flat gravel tracks, surrounded by irrigation channels and aquatic vegetation, until we reach Deltebre. Here we cross the village and the Ebre river via the bridge that connects Deltebre with Sant Jaume d’Enveja. We continue cycling along comfortable tracks between rice fields and canals, with the birds as our faithful companions.