Travertine Curtain (turnoff 200m west of the road to Wadi Darbat). A 150m-high escarpment marked with unusual geological formations, formed by the precipitation of calcium carbonate from seasonal waterflow. During the khareef all of the water from Wadi Darbat empties over this cliff face creating a spectacular seasonal waterfall. During the dry season the geological features can be more fully appreciated. To best see this, take the (unsigned) road immediately to the left of the road to Wadi Darbat; this leads to a car park, with a footpath heading through the trees to a better viewing area
