Tazawako is a picturesque lake located in Akita Prefecture, Japan. It is known for its stunning blue waters and is the deepest lake in the country, reaching depths of about 423 meters. Surrounded by beautiful mountains, Tazawako is a popular destination for outdoor activities such as hiking, fishing, and boating. The lake is also famous for its unique folklore, particularly the legend of Tazawa-ko, a beautiful girl who transformed into a lake. Visitors can enjoy scenic views, especially during the cherry blossom season and autumn foliage, making it a year-round attraction for nature lovers and tourists alike.