ケイズハウス日光ケイズハウスにっこう
Irregular closures announced on the calendar (e.g. closed Feb 5-8 and Jan 16-19 in 2023). No fixed weekly closing day.
700 yen/person (bath tax included, same rate for adults and children). Towel rental 300 yen.
Uses natural hot spring water
Open-air outdoor bath
Enclosed indoor bathing area
Private bath available for day-use visitors or hotel guests to reserve
Shared bathing area for all genders
Allows entry with visible tattoos
Restaurant or dining open to visitors (not just hotel meal plans)
Shower, wash stations, soap and shampoo provided
Towels available to rent or borrow
Relaxation space for after bathing
On-site or nearby parking available
K's House Nikko sits in the Kinugawa Onsen (鬼怒川温泉, Kinugawa Onsen) area and has both an indoor bath and a rotenburo (露天風呂, open-air bath) fed by natural hot spring water, with the outdoor bath looking directly over the Kinu River. The baths are gender-separated and the place is openly tattoo-friendly. Day-use bathing is available in the evenings for non-staying guests. The hostel opened in 2022 with a shared lounge, a fully equipped kitchen, and an outdoor terrace.
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Last updated June 25, 2026