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 oasis is reflected in a lake caused by heavy rainfall in the desert town of Merzouga, near Rachidia, southeastern Morocco, on Oct. 2. A rare deluge left blue lagoons

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 most drought-stricken regions with more water than many had seen in decades.

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 most drought-stricken regions with more water than many had seen in

Water rushing between the sand dunes of southern Morocco: the surreal image left by the heavy rains that fell in August and September have given a different face to the Moroccan Sahara, better known for its frequent droughts.

The Sahara Desert in southeastern Morocco has experienced a rare deluge of rainfall, transforming it into a blue lagoon. This has brought relief to drought-stricken areas, recharging groundwater and reservoirs.