Footprints and sand ripples in the sand dunes of the Tenere Desert, Sahara, Niger, Africa

photography vertical color image travel destinations travel desert arid climate tenere desert rippled sand dune sand niger west africa africa outdoors sunset dusk landscape no people clear sky sky shadow sunshine sunlight travel destination tourist destination tourist destinations sundown evening twilight shadows sand dunes dune dunes deserts outdoor outside nobody no one no person hot heat arid dry