Guelta d'Archei waterhole, Ennedi Plateau, UNESCO World Heritage Site, Ennedi region, Chad, Africa

travel destination photography horizontal colour image outdoors day landscape scenics physical geography non urban scene no people unesco world heritage site unesco africa chad ennedi region ennedi plateau waterhole guelta d'archei guelta water cliff sandstone geology rock rock formation blue sky extreme terrain reflection colour color image color outdoor outside tourist destination travel nobody no one no one topography scenery scenic scene scenes picturesque reflecting reflected unesco world heritage sites world heritage site world heritage sites