Japanese hot spring resorts highlight new facilities and renovations

Featured Japanese hot spring resorts highlight recent renovations and unique amenities.

In Nagano Prefecture, the Shirakaba Resort Ikenotaira Hotel has transitioned to a new concept called ‘THE LAKE RESORT’ following the reconstruction of its main building. The facility offers infinity-style open-air baths and saunas designed to provide views of Lake Shirakaba and Mount Kurumayama. The baths utilize calcium-sodium sulfate spring water from the Tarugazawa Onsen source.

In Gunma Prefecture, Manza Onsen Nisshinkan, located within a national park at an altitude of 1,800 meters, offers acidic sulfur springs. The resort is undergoing renovations to its ‘Gokurakuyu’ open-air bath, with completion expected in August 2026. Additionally, the ‘Mori no Kan’ wing is scheduled to undergo a renewal in December 2025, featuring modern twin rooms with wooden interiors.