Abant Lake It is a crater and puddle lake formed in the Abant mountains, 34 km from Bolu city center. The height of the park area consists of various hills from 1400 meters to 1700 meters. It is one of the places frequented by many domestic and foreign tourists, both for a day trip and for accommodation. The deepest point in the lake, which is fed by groundwater, is 18 meters. The area was taken under protection as a "Nature Park" in 1988. You can enter the Abant Lake Nature Park for a fee and make use of the toilet, fountain, lighting, extension cables and electricity facilities.