Acidic hot springs

Tamagawa Onsen, in Towada-Hachimantai National Park, is renowned for Japan's most acidic hot springs with a pH of nearly 1 and the rare hokutolite, a naturally radioactive stone believed to have therapeutic properties. Visitors can relax in the unique waters and explore the rugged, scenic surroundings. This remote retreat offers a distinctive blend of natural beauty and geological wonders.