The Rann of Kutch is a seasonally marshy saline clay desert located in the state of Gujarat, India. Kutch is the largest district of Gujarat wherein as many as 18 varied tribes live harmoniously, in spite of their distinct language, culture and customs. This is what makes it a paradise for cultural tourists worldwide. Kutch Mahotsav or the great Kutch festival is organized during December - January every year near the days when Shivratri is celebrated in Gujarat. It offers access to the interior and beautiful recesses of the dessert district. Colorfully attired dancers, music concerts, Sindhi Bhajan performances, Langa Desert Music and shops selling traditional Kutchi embroideries and jewelry are to be enjoyed. The desert-like Rann of Kutch occupies a big part of the region. Mostly marshy, the Rann runs into the horizon. During summer it is dry and has a white coating of salt. In India's monsoon, the flat dessert of salty clay and mudflats, averaging 15 meters above sea level, fills with standing waters, interspersed with sandy islets of thorny scrub, breeding grounds for some of the largest flocks of greater and lesser flamingos. The Rann Of Kutch is home to a wide array of flora and fauna. Migratory birds deem it an abode during diverse weather conditions. The Rann is also famous for the Indian Wild Ass Sanctuary, the Little Rann of Kutch, where the last of three species of Asiatic wild ass (Equus hemionus khur or khar) still exists along with wolves, foxes, jackals, chinkara gazelles, nilgai antelope and blackbucks as well as 13 species of lark. Kutch is famous for its handicrafts, hills, white deserts, beautiful virgin sea beaches, various forts and above all Dholaveera, one of the five largest Harappan sites and among the most prominent archaeological sites in India belonging to the Indus Valley Civilization. Bhuj with a population of more than 150,000 lakh (2011) is a major city of the region. Mandvi and Pingleshawar are famous for sea beaches. The Black Hills (Kalo Dungar), 25 km north of Khavda, are a good vantage point to see the vast expanse of the white desert. The top of the Black Hills is the highest point in Kutch, at 462 m. From here, the entire northern horizon vanishes into the Great Rann, the desert and sky often becoming indistinguishable.