Wadi Darbat is the most spectacular natural site in the Salalah day-trip area, particularly during the khareef monsoon season (June–September) when the wadi fills with water and a series of waterfalls pour over the limestone cliffs. The large natural lake in the valley floor attracts waterbirds and camels, and the surrounding hills are improbably green. It feels nothing like the rest of Arabia.
Located about 40 km east of Salalah near the village of Taqah, the wadi is also impressive outside monsoon season for its massive cave system (Tawi Attair, the "Well of Birds" — a deep sinkhole cave where thousands of swifts nest) and its dramatic limestone karst scenery. A tarmac road runs through the wadi to a viewpoint above the main waterfall area. A car is required to reach the site independently.