2 verified1 possible of 13 stays in our register, for these answers
Tattoo size not set — counted as large, to be safe. 2 more are verified if a sticker can cover it. Set tattoo size
The inn's (or its operator's) written rule lets you bathe, for these answers.
Hoshino Resorts group page (linked from KAI Akiu onsen page): tattoos not restricted, but shared bath may be refused if staff judge other guests may feel fear.
Operator's group-wide rule · checked 11 Oct 2026
Large/intimidating tattoos may be refused at staff discretion; private bath available.
Inn's official FAQ · checked 11 Oct 2026
No tattoo rule for the bath you'd use, but a hot-spring private bath is listed — our inference, not the inn's word. Ask the inn before you book.
No tattoo rule published · private bath listed on the inn's official site · checked 11 Oct 2026
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