Dashte Kavir (Central Desert), also known as Kavir-e Namak (Salt Desert) is a large desert lying in the middle of Iranian Plateau. Dashte Kavir’s area which is about 800 kilometers (497 mi) long and 320 kilometers (198 mi) wide with a total surface of about 77,600 km² (~30,000 mi²) is a very attractive place for European tourists because of its intact and always changing sand dunes.
The area of Dashte kavir desert stretches from the south hillside of Alborz mountain range in the north-west to Dasht-e Lut in the south-east. It is located between the provinces of Khorasan (east), Semnan/Tehran (north) and Isfahan and Yazd (west and south).
The climate of this desert is almost rainless and very arid. Temperature can reach 50 °C in summer, and the average temperature in January is 22 °C. Day and night temperatures during a year can differ up to 70 °C. Rain usually falls in winter. It receives an average of only 1.2 inches (3
centimetres) of rain a year making it among the driest places on the planet. Some places of this desert reportedly receive no rain. On the planet, this extremely barren land is the only region free from any life, including even bacterias.