The Yedigoller (Seven Lakes) National Park The Yedigoller National Park is 42 km from the north of Bolu, and can be reached via the Yenicaga road. The route from Bolu to Yedigoller National Park closes during winter, in which case one would need to travel by car using the Yenicaga-Mengen route. Yedigoller National Park, which was declared a national park in 1965 and covers 1623 hectares of land, is an oasis for visitors surprised by the seven small lakes situated within its borders. The name of the lakes are: Buyukgol, Deringol, Seringol, Nazligol, Sazligol, Incegol and Kucukgol. The national park blessed with dozens of species of trees, like redwoods, oaks and elms which offer a unique environment. The protection afforded to the natural wildlife - such as deer, pigs, wolves and foxes - provides them with the best chance for survival. A number of brightly colored autumn leaves are sure to catch your eye and make you want spend all day taking in their beauty. During the winter months when Yedigoller is covered in snow it truly is one of the most picturesque sights in Turkey. For visitors wanting to experience the beauty of wildlife and rich landscape, Yedigoller national park is the perfect place.