ALG-384, Strange Arch, North Idou Maze Area. 7 meter height (estimated). This arch is located 400 meters east of ALG-382 (Big Boulder Arch II) on the other side of a corridor complex. Guide Mohamed Bilali under the arch provides scale. The crack visible on the wall behind the opening is not an arch. The strange shape of the arch is difficult to emphasize. Photo by Daniel Putelat.