Sylvan Lake is a picturesque body of water located in Custer State Park, South Dakota. It is known for its stunning granite formations and clear blue waters, making it a popular destination for outdoor activities such as hiking, fishing, and boating. The lake is surrounded by lush forests and offers scenic views, attracting visitors year-round. The area around Sylvan Lake features several trails, including the Sylvan Lake Shore Trail, which provides easy access to the lake's shoreline. Additionally, the lake is home to various wildlife species, enhancing the natural beauty and recreational opportunities for nature enthusiasts and families alike.