A rare deluge of rainfall left blue lagoons of water amid the palm trees and sand dunes of the Sahara desert, nourishing some of its driest regions with more water than they had seen in decades. Southeastern Morocco's desert is among the most arid places in the world and rarely experiences rain in late summer.

An unusual deluge has left vibrant blue lagoons amid the palm trees of the Sahara Desert, rejuvenating some drought-stricken areas.