ROMA – Nello stato americano dell’Arizona, nel Vermilion Cliffs National Monument c’è una formazione rocciosa conosciuta come “The Wave”,(“l’onda” n.d.r).
Le autorità locali per preservare quest’area formata da rocce rosa che hanno la forma di onda, permette l’accesso a solo 20 turisti al giorno (foto Ap/LaPresse)
This May 28, 2013 photo shows a hiker taking a photo on a rock formation known as The Wave in the Vermilion Cliffs National Monument in Arizona. The U.S. Bureau of Land Management limits the number of permits for hikers to 20 a day in order to preserve the backcountry wilderness experience and protect the sandstone formation. (AP Photo/Brian Witte)
This May 28, 2013 photo shows hikers pausing to view a rock formation known as The Wave in the Vermilion Cliffs National Monument in Arizona. The U.S. Bureau of Land Management limits the number of permits for hikers to 20 a day in order to preserve the backcountry wilderness experience and protect the sandstone formation. The permits are issued by lottery, half of them four months in advance through an online lottery and 10 by a live drawing of bingo balls the day before. (AP Photo/Brian Witte)
This May 28, 2013 photo shows a swirling colorful rock formation known as The Wave in the Vermilion Cliffs National Monument in Arizona. The U.S. Bureau of Land Management limits the number of permits for hikers to 20 a day in order to preserve the backcountry wilderness experience and protect the sandstone formation. (AP Photo/Brian Witte)
This May 28, 2013 photo shows hikers walking on rocky terrain for a 3-mile trip to The Wave rock formation in the Vermilion Cliffs National Monument. People who make the hike are advised to bring at least a gallon of water for the desert backcountry journey that begins in southern Utah and crosses over the border into Arizona. (AP Photo/Brian Witte)
This May 28, 2013 photo shows a hiker on a rock formation known as The Wave in the Vermilion Cliffs National Monument in Arizona. The U.S. Bureau of Land Management limits the number of permits for hikers to 20 a day in order to preserve the backcountry wilderness experience and protect the sandstone formation. (AP Photo/Brian Witte)
