The Judean Desert is bounded by Judean Mountains and cities of Ramallah and Arad on the west and cliffs, below which begins the Dead Sea on the east. Annual precipitation in the middle of Judean Desert is only 250 mm. There are famous valleys in the Judean Desert: valley of Nachal Kumran and Vadi Murabba'at. In Vadi Murabba'at the oldest described scrolls in the world - the Dead Sea Scrolls - were found. Among other tourist attractions of the Judean Desert belong, for example Kumran caves, an oasis of En Gedi and the monastery Nachal Kidron.