Set between the Garraf Massif and the Serra de Collserola (part of the Catalan Coastal Range), the Llobregat Delta is home to one of the most important wetlands in Catalonia in terms of size, variety of habitats and wildlife species, in particular water birds, since it’s located in the centre of the migratory route of birds travelling from Northern Europe to Africa. Indeed, more than 350 bird species visit the delta every year. They’re in their element there, thanks to the special protection it affords.

In the lagoons and pine forests, on the dunes and beaches, in the meadows and crop fields, you can spot many birds that are difficult to see elsewhere; all you have to do is put on some comfortable shoes, keep your eyes peeled and follow one of the trails designed to help you explore the natural areas of the delta. If you get tired of walking, you can always take a break in one of the hides and quietly observe the various bird species as they swim, rest, nest and take flight.

And if you want to take your birding experience to another level, you can also sign up to the nature activities that are regularly organised in the Llobregat Delta. Accompanied by an expert, you get to discover the area's most important bird species, learn to recognise their songs, distinguish their distinctive features and return home with your head full of indelible images of these pilgrims of the sky.

•  World Migratory Bird Day (WMBD), takes place on 4 October. In the regions of Barcelona, the occasion is celebrated with various events aimed at fostering respect for nature. Check out the schedule of events on the website of the Natural Parks Network to find out more.