Mikurigaike Onsen

Mikurigaike Onsen is a mountain lodge and natural hot spring located at an elevation of 2,410 m on the Murodo-daira plateau in Tateyama, Toyama Prefecture, Japan. According to its official website, it opened on August 13, 1957 as Japan's highest natural hot spring, founded by Hachiroemon Oguchi together with a friend. The spring source is in Jigokudani, and the bath is operated as a 100% free-flowing, unheated, unwatered simple acidic spring with milky sulfur-scented water. The lodge also operates a day-use hot spring, the cafe 'Kissa Mikuri', the 'Restaurant Mikuri', and a shop selling original goods and Montbell products.

Mikurigaike Onsen opened on August 13, 1957 at an elevation of 2,410 m on the Murodo-daira plateau, described by its official site as Japan's highest natural hot spring. It was founded by Hachiroemon Oguchi, the great-grandfather of the current representative, together with a friend. The official site states that the hot spring water drawn from Jigokudani has been operated as a free-flowing simple acidic spring, unchanged from past to present. The third-generation representative is Saburo Oguchi. The site also notes that the building used until 1982 had a different entrance position from the current one.

Japan's highest natural hot spring, at 2,410 m on the Murodo-daira plateau, offering a free-flowing simple acidic spring and dining and shop facilities for both overnight and day visitors.

• Overnight lodging

• Day-use hot spring

• Cafe 'Kissa Mikuri'

• Restaurant 'Restaurant Mikuri'

• Shop with original goods and Montbell products

1. 1【公式】みくりが池温泉｜立山・室堂平にある日本一高所の天然温泉mikuri.com
2. 2みくりが池温泉について｜【公式】みくりが池温泉｜立山・室堂平にある日本一高所の天然温泉mikuri.com
3. 3【修正版】予約受付開始日について(About the reservation start date for 2026*Revised version*)mikuri.com
4. 42026年度 予約受付開始日について(About the reservation start date for 2026)mikuri.com