Right Onsen › Gunma › Tomioka

Myogi Onsen Choju-no-Yu

Name: Myogi Onsen Choju-no-Yu
Address: 2678 Myogimachi Sugahara, Tomioka, Gunma 379-0208, Tomioka, Gunma, JP
Telephone: +81274-73-4111
Rating: 4.1

4.1★ · 35 Google ratings · Tomioka, Gunma · 妙義温泉長寿の湯

Open in Google Maps Official site (Japanese)

✓ Natural hot-spring water✓ Free-flowing source water✓ Outdoor bath✓ Rest area✓ Restaurant

Before you go

Can you bathe here?

Day visitors

✓ YesDay-use bathing is offered.stated by 3 visitors · Oct 2022 – Mar 2025

Hours

12:00–20:00from the facility listing

Price

¥800Standard adult admission is 800 yen; an older review cites 720 yen with a JAF discount to 410-500 yen, though the JAF discount was discontinued (replaced by a ticket booklet) as of late 2024.stated by 3 visitors · Feb 2024 – Mar 2024

Tattoos

Not known · call aheadno policy stated in the 26 recent reviews we read or on the facility's website

How we know this

Watch out

Rest area

As a hotel bathing facility, there is no dedicated onsen rest area.

stated by 3 visitors · Jul 2020 – Aug 2026

The bath

What you’ll find

The day-use bath of a golf-course hotel (Myogi Green Hotel) with one indoor and one small outdoor tub facing a celebrated view of Mount Myogi, heated/recirculated and chlorinated rather than kakenagashi, no sauna and no dedicated rest area; one recent review reports many showers out of order.

Outdoor bath

✓ YesA small outdoor bath overlooks the golf course and Mount Myogi.stated by 6 visitors · Apr 2022 – Jul 2026

Indoor baths

1There is one larger indoor bath.stated by 2 visitors · Apr 2022 – Jul 2026

Outdoor baths

1There is one small outdoor bath.stated by 2 visitors · Apr 2022 – Jul 2026

Sauna

NoThere is no sauna.stated by 2 visitors · Mar 2024 – Jul 2026

View

MountainThe bath looks out over the golf course and Mount Myogi.stated by 5 visitors · Sep 2019 – Oct 2022

Rest area

NoAs a hotel bathing facility, there is no dedicated onsen rest area.stated by 3 visitors · Jul 2020 – Aug 2026

Lodging

✓ YesThis bath belongs to a golf-course hotel, with day-use bathing also permitted.stated by 2 visitors · Mar 2023 – Apr 2026

The water

Spring type

Sodium bicarbonateOne reviewer describes the source as a sodium bicarbonate (juso) spring said to rank among Japan's best, though other reviews call it a plain simple spring, note a sulfur smell, or say it has no distinct characteristics.stated by 1 visitor · Mar 2024

Heated

✓ YesThe source runs cool and is artificially heated.stated by 2 visitors · Jan 2020 – May 2021

Water added

✓ YesTap water is added to the spring.stated by 2 visitors · May 2021 – Apr 2022

Chlorinated

✓ YesThe water is chlorinated; one reviewer found the smell strong, another noted it lessened on a later visit.stated by 4 visitors · Jun 2023 – Aug 2026

Guide

What visitors add

The water

Five reviewers describe the water as slippery/skin-smoothing (nurutto/subesube/torotto). Characterization varies: one calls it a simple spring (tanjunsen), one detected a proper sulfur smell, one loves a faint oil smell and repeats hearsay that the source is 'Japan's best baking-soda spring', and one says the water has no distinctive character. It warms well per two reviewers.

stated by 9 visitors · Aug 2019 – Mar 2025

Outdoor bath & sauna

There are exactly two tubs — a large indoor bath and a small open-air bath (five reviewers describe the rotenburo as small, fitting only a few people). There is NO sauna (three reviewers state this explicitly) and NO rest area for day-use bathers (three reviewers). The view is the highlight: at least five reviewers praise the panorama of Mt. Myogi and the golf course from the bath/rotenburo.

stated by 9 visitors · Sep 2019 – Aug 2026

Day-use visits

Day-use bathing is welcomed at this golf-course hotel bath (basement level of the Myogi Green Hotel), confirmed by at least four reviewers. No opening hours appear in reviews. Crowding varies: two reviewers found it near-empty (one had the bath to themselves on a weekday), while one weekend-evening visitor found it full of hotel families with children and another saw decent weekday traffic.

stated by 5 visitors · Oct 2022 – Apr 2026

Price

Adult admission is 800 yen (three reviewers, 2024-2025; one adds children 600 yen and towel rental 300 yen on a weekend). The price rose over time: a 2022 reviewer paid 720 yen base. The JAF member discount (once 720→410 yen, later 500 yen) was DISCONTINUED: one reviewer says it ended in October of the prior year and was replaced by an 11-ticket coupon book, and another (December 2024) was told no such discount is offered.

stated by 5 visitors · Apr 2022 – Mar 2025

Water handling

Not kakenagashi: the water is diluted, heated, recirculated, and chlorinated — stated by three reviewers (one notes the source temperature is low so the water is heated). Chlorine intensity reports vary by date: one 2023 visitor found it strong on a first visit but much reduced on a second; a 2022 reviewer found the chlorine unobjectionable; the most recent report (August 2026) calls the chlorine smell harsh in the rotenburo.

stated by 5 visitors · Jan 2020 – Aug 2026

Towels, soap & lockers

Towel rental costs 300 yen per one reviewer (March 2025). The washing area has roughly 10-15 shower stations (one reviewer counted about 10, another about 15 in a U-shape), but one July 2026 reviewer reports many showers broken.

stated by 4 visitors · Apr 2022 – Jul 2026

Timing