Kotaki-no-Yu

3.2★ · 5 Google ratings · Minakami, Gunma · 小滝の湯

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✓ Natural hot-spring water✓ Free-flowing source water

Before you go

Can you bathe here?

Day visitors

Staying guests onlyAccess is restricted to local residents and guests of certain inns, who borrow a key.stated by 5 visitors · Dec 2022 – Apr 2026

Tattoos

Not known · call aheadno policy stated in the 6 recent reviews we read or on the facility's website

How we know this

Watch out

Day visitors

Access is restricted to local residents and guests of certain inns, who borrow a key.

stated by 5 visitors · Dec 2022 – Apr 2026

The bath

What you’ll find

A tiny donation-based community bath (kyodo-yokujo) in Yujuku Onsen restricted to locals and lodging guests, with hot kakenagashi water straight from the source and no shower or shampoo.

The water

Free-flowing (kakenagashi)

✓ YesWater flows directly from the source tank with no dilution or added heating.stated by 2 visitors · Oct 2025 – Mar 2026

Source temperature

63°CThe source runs at 63°C.stated by 1 visitor · Mar 2026

Guide

What visitors add

Day-use visits

This is a locked communal bath (kyodo-yu) for locals and staying guests only, not a walk-in day-use facility: 6 of 6 reviewers describe it as locals-only/community bath, and 4 of them entered by borrowing the entrance key from their ryokan (one names Yumotokan). No hours are posted in reviews.

stated by 6 visitors · Dec 2022 – Jul 2026

The water

The bath is hot: 4 distinct reviewers call it hot, one giving a source temperature of 63C and tub temperature of 43-44C; one describes sweat pouring out after only 5 minutes, yet found the water gentle on the skin and clear. One reviewer (2023) says the water is drinkable and reputedly good for diabetes and high blood pressure (hearsay).

stated by 5 visitors · Feb 2023 – Jul 2026

Water handling

One reviewer (March 2026) states it is kakenagashi with no added water and no heating; another (October 2025) says the water comes straight from the tank in front of the building and had to be diluted a little to get in.

stated by 2 visitors · Oct 2025 – Mar 2026

Towels, soap & lockers

Bring everything: nothing is provided — one reviewer notes you must bring all shampoo and soap and that there is a single tap (karan); another confirms there is no shower. The changing room fits only about 2 adults and the tub is roughly 2-2.5 tatami; the door is auto-locking, so forgotten items are a problem (one reviewer each).

stated by 2 visitors · Mar 2026 – Jul 2026

Staffing

The bath is unmanned: entry is by borrowed key, payment is an honor-system donation box, and one weekday-afternoon visitor had the bath entirely to themselves.

stated by 2 visitors · Apr 2026 – Jul 2026

Practical