The Yedigöller (Seven Lakes) National Park in the Western Black Sea Region, located in a very rugged region within the boundaries of Bolu province, has a rich vegetation cover resembling the “Forest Sea” with the landscaped lakes. Bolu is located on the border of the Mengen and Yığılca districts and spread over an area of 2,020 hectares, including the Yedigöller park, was declared a national park in 1965. Seven large and small landscapes in the national park are the main sources of landslides, the trout that live in these lakes and the recreation potential created by these values. Yedigöller basin consists of seven landslide lakes like Sazlıgöl, İncegöl, Nazlıgöl, Küçükgöl, Deringöl, Büyükgöl and Seringöl which are lined up in a 1500 meter area from the southern part to the northern part. Some of these lakes are connected with the bottom runners.
The lakes are on two plateaus with a height difference of 100 m between them. Büyükgöl is the largest of the lakes on the plateau at an altitude of 780 m. Deringöl in the south-east of Büyükgöl is connected to Büyükgöl with a 20 m long flowing section. To the north of Büyükgöl is Seringöl. The other platoon is at the height of 100 m. The widest lake of this plateau is Nazlıgöl. Sazlıgöl, İncegöl and Kurugöl are the same platitudes.
The first artificial trout breeding station in Turkey, was established in 1969, the Seven Lakes National Park. For this reason, this region has been a source of angling for recreational purposes. The trout species that fishermen brought from Abant brought the eggs of Yedigöller’s natural trout varieties to the extinction point. In addition, camping, day picnicking, walking in nature, photography is a hobby.
Types of Yedigöller Plant Covered and Living Carpets
Yedigöller National Park has a very strong infrastructure for scientific investigation and research. At first lily, cyclamen, crocus and orchids, including hosting a total of 236 plant species in the National Park, also with Turkey‘s most beautiful and rich natural forests. Beside beech and pine trees which are the main tree species, flickering poplar, hazelnut, leafy chickpea, goat chestnut, wild cherry and ash trees can be seen.
In the Yedigöller National Park, there are also bear, wild boar, wolf, fox, mountain cow, lynx, badger, marten, squirrel, deer, roe and rabbit. It is also found that more than 100 bird species such as wild ducks, wild pigeons, woodpeckers, turtles, quail, woodcock, starlings, mosquitoes and partridges have been found on the National Park grounds. With these characteristics, Yedigöller National Park is a paradise for nature. Every year in May-September, sport fishing angling can be done in Büyükgöl and Deringöl. In the lakes there are also lake and rainbow trout.