I visited recently The Slowinski National Park, one of the national parks at the Polish Baltic Sea coast. I photographed sand dunes, so called “moving dunes”. The wind moves the top of the dunes very slowly, around 3 to 10 meters per year. The landscape is very deserted and with very bright sand that looks like snow. The wind reveals old forest destroyed earlier by the moving sand. This Park is on UNESCO list of World Biosphere Reserves.