Bolu - YedigÃ¶ller (Seven Lakes) National Park Location: The Yedigoller (Seven Lakes) National Park is in the north of the Bolu province, and south of Zonguldak in the western Black Sea region. Highlights: The park is the best known for the lakes formed by landslides, the rich plant life which gives dense coverage to the area, and the abundance of trout living in the lake. The structure of the land, which has tendencies to subside, is the main factor in the lakeâ€™s formation. The dominant plant cover is beech trees, and there are also oaks, hornbeams, alders, black pine, Scotch pine, firs elm and lime trees. As a result of effective protection of plant and animal life, the animals inside the park like deer, pigs, wolves, foxes and squirrels are increasing in number. There is also a deer protection area. This area saw the first cultured trout farm in Turkey, established in 1969, and as a result trout fishing is a popular activity. The sightseeing tower at Kapankaya, inside the park, offers a great opportunity to view a wide area over the lakes and unique landscape. One of the most famous items is the monumental tree signboard on the way to the tower. Facilities: Within the park are guest-houses, bungalows, tents and caravans, as well as cafes and restaurants.