The Yedigoller (Seven Lakes) National Park Yedigoller National Park is a picturesque oasis located 42 km north of Bolu and accessible via the Yenicaga road. During winter, the route from Bolu to the national park is closed, and visitors must use the Yenicaga-Mengen route to reach their destination by car. The park was declared a national park in 1965 and spans 1623 hectares of land. The seven small lakes, including Buyukgol, Deringol, Seringol, Nazligol, Sazligol, Incegol, and Kucukgol, are the main attraction for visitors. The park is home to numerous species of trees, including redwoods, oaks, and elms, creating a unique environment. Wildlife such as deer, pigs, wolves, and foxes are protected in the park, ensuring their survival. In autumn, brightly colored leaves add to the park's beauty, while in winter, the snow-covered landscape offers a picturesque sight. For those seeking a breathtaking experience of wildlife and stunning landscape, Yedigoller National Park is an ideal destination.