Lonely boats float on the water of the Rubin marshes in San Vicente de la Barquera, province of Cantabria, northern Spain, 18 October 2016. The Rubin marshes form part of the San Vicente de la Barquera's estuary, one of the most important ecological spaces in the Bay of Biscay, that is to be restored a century after being drained. (Photo by Pedro Puente Hoyos/EPA)
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