ナショナルジオグラフィックさんのインスタグラム写真 - (ナショナルジオグラフィックInstagram)「Photo by Ira Block @irablockphoto | A full moon rises over the dunes of Erg Chebbi, near Merzouga, Morocco. Ergs are seas of dunes formed by wind-blown sand over time. Some of the dunes rise up to 150 meters (500 feet) from the surrounding desert. Besides visiting tourists, the area is also popular for sandboarding, a sport similar to snowboarding. #followme for more travel imagery @irablockphoto #travel #morocco #sanddunes #irablock」11月10日 19時39分