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Showa Hot Spring

Name: Showa Hot Spring
Address: 624 Itoi, Showa, Tone District, Gunma 379-1203, Showa, Gunma, JP
Telephone: +81278-20-1126
Rating: 3.7

3.7★ · 324 Google ratings · Showa, Gunma · 昭和の湯

Open in Google Maps Official site (Japanese)

✓ Natural hot-spring water✓ Outdoor bath✓ Rest area

Before you go

Can you bathe here?

Day visitors

✓ Yesstated on the facility's website · read 2026-09

Hours

10:00–21:00 · closed Mondayfrom the facility listing

Tattoos

✓ AllowedTwo reviewers independently confirm tattooed bathers, including full-body tattoos, are commonly present and not restricted.stated by 2 visitors · Mar 2025 – Mar 2026

Price

¥600Eight reviewers consistently report a 600 yen adult admission fee.stated by 8 visitors · Feb 2025 – May 2026

Time limit

6 hoursTwo reviewers report a generous 6-hour stay allowance for the entry fee.stated by 2 visitors · Jan 2026 – Feb 2026

How we know this

The bath

What you’ll find

A cheap, no-frills community bathhouse (village welfare-center style) with sauna, cold bath and outdoor bath, dominated by local regulars and sometimes rowdy (karaoke, crowded sauna), with one dissenting reviewer claiming the water is chlorinated tap water rather than a real hot spring.

Outdoor bath

✓ YesAn outdoor bath is mentioned by many reviewers.stated by 14 visitors · Feb 2025 – Aug 2026

Sauna

✓ YesA small sauna is mentioned by several reviewers, though it can be dominated by regulars and mismanaged etiquette.stated by 8 visitors · Mar 2025 – Aug 2026

Cold bath

✓ YesOne reviewer mentions a cold plunge bath alongside the jet bath and main tub.stated by 1 visitor · Feb 2026

Rest area

✓ YesA rest area exists, though one reviewer found it disrupted by loud karaoke noise from an adjacent room.stated by 3 visitors · Mar 2025 – Jan 2026

Practical

What to bring

Soap & shampoo

✓ ProvidedShampoo and body soap are provided at wash stations, confirmed by multiple reviewers.stated by 4 visitors · Jan 2026 – May 2026

Lockers

✓ Coin returnedCoin lockers require a 100 yen coin that is returned, making them effectively free.stated by 2 visitors · Jan 2026 – May 2026

Hair dryer

✓ YesHair dryers are available at the sink area, confirmed by two reviewers.stated by 2 visitors · Mar 2026 – May 2026

Guide

What visitors add

Price

Adult admission is 600 yen — cited by eight distinct reviewers (Feb 2025 – Apr 2026); one notes there is no JAF or similar discount, one says locals appear to get a discount, one received free shirataki noodles on entry, and one paid a reduced event rate during a local marathon.

stated by 8 visitors · Feb 2025 – May 2026

Outdoor bath & sauna

There is an outdoor bath, an indoor bath and a sauna: eight distinct reviewers mention the rotenburo and six the sauna; two size the sauna at about 4–5 people, one puts it at about 90°C, one mentions a cold-water bath, and two mention a jet-bath/jacuzzi tub.

stated by 8 visitors · Feb 2025 – May 2026

The water

Reported bath temperatures conflict: two reviewers found the outdoor bath hot/hotter (one estimating ~42°C overall), while three found the outdoor bath lukewarm or lower than the indoor bath (one estimating ~40°C, good for long soaks).

stated by 5 visitors · Mar 2025 – May 2026

Staffing

Staffed reception (pay at the desk, not unmanned); service reports conflict: three reviewers praise staff as kind/good, while two complain (one calling the reception woman visibly ill-tempered, one rating service 'mediocre').

stated by 5 visitors · Feb 2025 – Aug 2026

The water

Water character is disputed: two reviewers say it barely feels like an onsen (one calling it 'an extension of a sento', the other reporting strong chlorine smell, lukewarm water, and flatly claiming 'it is not an onsen'), while other reviewers simply praise it as good water; one reviewer describes the indoor bath's water as having a distinctive 'grandmother's house' smell.

stated by 3 visitors · Feb 2025 – Jan 2026

Outdoor bath & sauna

Two reviewers (Jan–Feb 2026) report that local regulars claim sauna seats with their own chairs/mats and enforce their own rules — one visitor was told to keep a spot free; a third reviewer (Aug 2026) complains of poor sauna manners (people entering the cold bath without rinsing off sweat).

stated by 3 visitors · Jan 2026 – Aug 2026

Timing