Complementing the inherent spectacle of the surrounding area, La Marisma casts its poetic and contemplative gaze upon the marshes of Doñana: natural beauty and religious devotion converge in a landscape now threatened by water shortage and, more than divine, human intervention. Biologist, photographer, and filmmaker Manu Trillo, along with the producers of acclaimed films Secaderos and Nacido en Gaza, join forces and talents to craft a powerful narrative open to experimentation. Cowboys who are not quite cowboys (but who also spend long days on horseback) star in a series of timeless vignettes that draw equally from silent cinema, video installation, and cinéma vérité; from the sounds of the ecosystem around them to the guitar of Dani de Morón. At the crossroads of millennia of history and the future of Europe's most important National Park lies this miraculous, mesmerising documentary.