Wayang-Windu is a twin volcano that consists of Mount Wayang (Indonesian: Gunung Wayang, "Mount Shadow") and Mount Windu. They are located just to the east of the town of Pangalengan in the Bandung Regency (Kabupaten or District) in West Java, Indonesia, about 40 km south of the city of Bandung. The area has been an active geothermal project. Mount Wayang has a 750 m wide crescentic crater which holds four groups of fumaroles. Mount Windu has a 350 m wide crater.