Imogiri, the official cemetery of the royal descendents from Yogyakarta and Surakarta, is about 17 kms southeast of Yogyakarta and easily accessible by the bus or car. The tombs lie within three main courtyards perched on a hilltop. Entry into the smaller courtyards housing the tombs of the princes is allowed only by visitors wearing traditional Javanese dress. Open on Monday 09.00 am to 12.00 pm and Friday 13.00 pm to 16.00 pm The cemetery is closed during the Moslem month of Ramadhan.
Source: The Ministry of Tourism and Creative Economy Republic Indonesia