Alpine Wetland

Tanohara-Shitsugen Marsh, situated at an elevation of 1,600 meters in Nagano's Shiga Kōgen Highlands, is a raised bog that once lay beneath ancient Lake Shiga. This unique wetland supports rare alpine flora, including bog-rosemary and the insectivorous round-leaved sundew. Visitors can explore the area via wooden boardwalks, making it ideal for nature walks and photography. The marsh's landscape transforms with the seasons, showcasing cotton-sedge blooms in early summer and vibrant foliage in autumn. It's a tranquil destination for those seeking to experience Nagano's natural beauty.