Sayama Lake is a scenic reservoir located in Sayama City, Saitama Prefecture, Japan. It was created in the early 20th century to supply water to the surrounding areas. The lake is surrounded by lush greenery and offers a peaceful environment for visitors. The area around Sayama Lake features walking trails, picnic spots, and opportunities for birdwatching. It is a popular destination for both locals and tourists, providing a serene escape from the hustle and bustle of city life. The lake is also known for its beautiful seasonal views, especially during cherry blossom season.