Watanuki Penshon
綿貫ペンションわたぬきペンション
Japan's first pension, with kakenagashi Kusatsu onsen and an Italian restaurant
Bathing & Water
Uses natural hot spring water
Enclosed indoor bathing area
Bathing Arrangements
Shared bathing area for all genders
Policies & Services
A restaurant or dining room open to visitors, not only meals for overnight guests
Shower, wash stations, soap and shampoo provided
Towels to rent or borrow at the desk
On-site or nearby parking available
About
Watanuki Pension (綿貫ペンション) opened in Kusatsu Onsen in 1969 as Japan's first pension. The indoor bath runs on kakenagashi water from the Bandai spring (万代源泉, Bandai-gensen), kept flowing fresh and undiluted. The water is famously hot, so most guests dip in briefly rather than soak long. On the same premises, the son of the owner runs Ristorante Al Rodododendro, an Italian restaurant open to non-guests, where the menu follows the seasons with foraged mushrooms and mountain vegetables.
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Last updated September 19, 2026