Yedigöller National Park-A view from the Deringöl...... Yedigöller (means, Seven Lakes) is a National Park located in the northern part of the Bolu Province. The national park is rich for the plants and wild animals. There are various species of trees including alder, beech, fir, pine, larch, oak, elm and linden and several wild animals living in the national park. The lakes are formed by landslides. In the vicinity of the lakes, picnic areas and small bungalows are provided. The trees are painted with the most impressive red, yellow and green colors in autumn. Therefore autumn may be the best season to visit the national park. One can always enjoy the silence of the nature and feel the absolute serenity here.