About Aoulef: Aoulef is one of the driest and sunniest inhabited places in the world. Ancient 'foggara' tunnels move water underground so it does not dry up. Its date palms turn a tiny patch of the Sahara green. Clever underground tunnels carry water to the palms without wasting it to the sun

Location: The central Sahara Desert of Algeria · Country: Algeria · Yearly Rain: About 12 mm a year · Why So Dry: Surrounded by the vast Sahara, far from any rain-bringing sea · Water Source: Watered by old underground channels called 'foggaras' · Nature: Date-palm groves in a sea of sand and stone · Notable Feature: Famous for its sweet dates grown in the oasis · World Rank: One of the driest towns in the Sahara