Bolu is a province in north western Turkey, around the ancient city of Bolu. The highway from Istanbul to Ankara passes through Bolu after climbing Bolu Mountain, the major topographical obstacle. Yedigoller National Park (Seven Lakes) is located in Bolu province. The road to Yedigoller is very bad and has an unfortunate reputation in Turkey as being a centre for road accidents especially in winter. Abant Golu is another very attractive mountain lake which supprisingly hosts a large number of tourists from the Arab world. Kartalkaya skiing resort is in Bolu.