The best time to visit Kosaka, Akita Prefecture, is during the autumn months, particularly from late October to early November, for the stunning display of autumn foliage, or in late spring for pleasant weather and fewer crowds.Autumn is when Kosaka truly comes alive with vibrant colours. The area is renowned for its breathtaking momiji (autumn leaves), making it incredibly picturesque. This season is ideal for those who appreciate natural beauty and photography. You can enjoy walks through the forests and along Lake Towada, which is particularly striking with the surrounding trees in shades of red, orange, and gold.Late spring, from May to early June, also offers a wonderful experience. The weather is mild and comfortable, great for outdoor activities like hiking and exploring the Kosaka Smelting and Mining Museum.