Yatsugatake, Minamimaki Village, Minamisaku District, Nagano Prefecture
Rating
Cost per person
¥3,000
Honzawa Onsen is a secluded mountain retreat boasting Japan's highest-elevation open-air bath at 2,150 meters. Accessible only by foot, this hidden gem in the Yatsugatake Mountains offers a unique and rewarding experience. The outdoor bath, known as "Onjō-no-yu" (Bath Above the Clouds), provides stunning views of Mount Io. The facility also features indoor hot spring baths with distinct water qualities. Located in Minamimaki Village, Nagano Prefecture, it's approximately a 60-70 minute drive from the Sutama or Saku IC, followed by a 300-minute walk from Matsubarako Station on the JR Koumi Line. Be prepared for a challenging hike to enjoy this exceptional onsen experience.