Senjogahara Marshland
Located within Nikko National Park, Senjogahara Marshland is an expansive 400-hectare wetland. It was once a lake, but volcanic sediment gradually accumulated, allowing aquatic plants to take root, eventually forming a marshland under the region’s cool climate. The name "Senjogahara" (meaning "Battlefield Marsh") comes from a legend in which the deities of Mount Akagi and Mount Nantai transformed into a giant centipede and a great serpent, respectively, and fought over control of Lake Chuzenji.
After climbing Irohazaka, I finally made it here!
The air is so fresh and clear at this high altitude. It feels amazing. There were a lot of elementary school kids on a field trip that day, so it was pretty lively.








