Abant is one silent heaven! The lake is so restful and the surrounding is so beautiful that one can forget all his problems here while watching the lake from the small dock on the shore. Especially in the early morning, listening the birds and breathing the fresh forest air feels you like rebirth. The area can be very cold if visited in winter, since Bolu has a very high altitude. Best time to go in my opinion is autumn or spring! You can find nice places to sleep for cheap and very close.