Batu is a city located in East Java, Indonesia. Formerly, It was a part of Malang regency; but in 2001, Batu became an independent city legalized by Act of 11, 2001, when it became a municipal town with its own city mayor and council. A population of 170,000 people, it mostly consists of Javanese ethnics. The town used to be a recreation place for the Dutch colonial officers in the Dutch colonial area (before 1945). A historic colonial-style hotel is the Kartika Wijaya, founded in 1891 by the Sarkies Brothers.