Sülüklü Lake Nature Park
Sülüklügöl Nature Park is 50 km from Mudurnu. away, is located within the borders of Bolu Mudurnu district. The lake, which was formed as a result of a landslide about 300 years ago, is under protection by the National Parks and has an untouched beauty. The leeches that gave the lake its name are no longer in the lake. The lake, which has an area of 6 hectares, offers nature lovers the opportunity to have a pleasant time, especially in summer.