Onega is a large lake located in northwestern Russia, primarily in the Republic of Karelia. It is the second-largest lake in Europe after Lake Ladoga, covering an area of approximately 9,700 square kilometers. The lake is known for its picturesque landscapes, diverse wildlife, and numerous islands, making it a popular destination for outdoor activities such as fishing and boating. The city of Onega lies on the western shore of the lake and serves as an important cultural and economic center in the region. The area is rich in history, with archaeological sites and ancient settlements nearby. Additionally, the lake plays a significant role in local transportation and trade.