Man walking in backlight on a sand dune, Tenere desert, Niger, West Africa, Africa

photography horizontal travel destinations travel sand dune sand tenere desert desert arid climate niger west africa africa outdoors sunset dusk one person people one man only only men adult adults only landscape copy space sunshine sunlight silhouette walking travel destination tourist destination tourist destinations sundown evening twilight sand dunes dune dunes deserts outdoor outside one person only 1 person 1 person only person landscapes hot heat arid dry