The natural bridge of Imi N’Ifri is a natural arch 30 meters high. L 'Assif (L’aed in Berber), tissue dug in the limestone a particular formal (mouth). The name "Ifri" means in Berber "mouth of the cave". This form of erosion in the form of a natural bridge over the Tisslit wadi. The Imi N’ifri site is a geo-morphological curiosity unique in Morocco where many birds like to take refuge. It is one of the most visited sites in the Demnate region. Access is easy and the region offers an increasingly diverse welcome.