Hakusan Onsen Nagai Ryokan
白山温泉 永井旅館はくさんおんせん ながいりょかん
Day Use
YesAdults ¥800, children (elementary and under) ¥400. Capacity limited: max 10 men / 7 women.
Bathing & Water
Uses natural hot spring water
Open-air outdoor bath
Enclosed indoor bathing area
Capabilities
Private bath available for day-use visitors or hotel guests to reserve
Private onsen bath in guest rooms, for overnight guests only
The room/facility listing enumerates only the two shared gender-separated baths; no guest-room baths are listed.
Shared bathing area for all genders
Policies & Services
Restaurant or dining open to visitors (not just hotel meal plans)
Shower, wash stations, soap and shampoo provided
On-site or nearby parking available
Highlights
Lukewarm BathPrograms
About
Nagai Ryokan sits at the Ichinose trailhead for Mt. Hakusan and is a member of the Nihon Hito wo Mamoru Kai (日本秘湯を守る会), the society that preserves remote hot springs across Japan. The two indoor baths offer a lukewarm source-flow pool, kept flowing fresh without dilution, alongside a heated bath for those who want something hotter. The source water has a faint reddish tinge and runs clear and nearly odorless. No outdoor bath, but opening the window brings in the cool mountain air. Popular with hikers coming down from the mountain in summer.
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Last updated July 22, 2026