This is one of the most important green areas in the metropoli­tan area of Barcelona. It covers an area of 115 hectares divided between the municipalities of Barcelona, Santa Coloma de Gramenet, Sant Adrià de Besòs and Montcada i Reixac. The park is divided into two distinct areas: wetlands, of great environmen­tal, biological and scenic value (not open to the public) and the public area, extending over 5 km, with green areas, asphalted paths and a bike track. More than two hundred different bird species can be seen from the viewing points at the north and south of the park. Sant Andreu has three entrances to the park, one in Baró de Viver and two in the neighbourhood of Bon Pastor.

Regenerating a river

In 1995, after decades of neglect and deterioration, the Besòs
environmental rehabilitation project was included in the action plans of the pertinent local authorities. This is when, thanks to the combined efforts of Montcada i Reixac, Barcelona, Santa Coloma de Gramenet and Sant Adrià de Besòs, in cooperation with the Consortium for the Protection of the Besòs, a major riverbed clean-up project was launched, financed, to a large extent, European funds.

The resulting Besòs River Park, which opened in 2004,is a large area of parkland divided into three sections: wetlands (around Montcada i Reixac); an area for public use (shared by Sant Andreu, Santa Coloma and Sant Adrià); and the river mouth. The public area in Sant Andreu stretches from Trinitat Vella to the RCD Espanyol Sports City and provides locals with an area for walking, cycling and outdoor sports

The bird park

Thanks to the regeneration of the river, many natural habitats have also been recovered, and more than 200 bird species now inhabit the area. Other small mammals, such as mice and weasels, as well as other animals, including turtles and frogs, now inhabit the new river park.