11. GÖLKÖY BARRAGE LAKE This lake is 8 km. west of Bolu .All around the lake is sorrounded with forests.There are fishing ,sporting and picnic oppurtinies .
19. This hotsprings baths are in Karacasu 5km.They are on environment is completely covered with forests.A good resorts for holiday.These water hotspring bath are good for some illnesses,diseases like hearth ,skin and rheumatism diseases.