Location: Abant Lake is 33km away from Bolu, in the west of the Black Sea region, and exactly halfway between Ankara and Istanbul.
Transportation: The lake can be reached via the E-5, the Istanbul – Ankara highway, and then turning off at Omerler Madensuyu for 22km. Bolu is well connected by bus to other parts of the country.
Highlights: The lake shelters a variety of plants, and 1150 hectares were designated the status of Natural Park in 1988. The main species are Scotch pine, beech, larch, oak, poplar, ash, horn- beam, willow, juniper, forest rose, tamarisk, hazelnut, holly, dog-rose, bracken, blackberry, strawberry, mint, raspberry, ivy, nettle, mare's tail, and a variety of pasture grasses and trees. Species of animals include pig, deer, roe deer, bear, fox, jackal, rabbit, plus birds of prey and singing birds.
Facilities: The best time to visit the lake is between May and September, especially for walking and picnicking around the lake. There are a few hotels in the park.
Source: http://www.kulturturizm.gov.tr/