Tokyo · Tokyo City
Musashi-Koyama Onsen Shimizu-yu
武蔵小山温泉 清水湯
Five minutes on foot from Musashi-Koyama Station on the Tōkyū Meguro line, this rare central-Tokyo bathhouse offers two different natural hot springs. The indoor bath is coffee-coloured 'kuroyu' (sodium-bicarbonate water); the open-air bath uses salty rust-brown 'golden water' pumped from 1,500 m below and left free-flowing — both certified as therapeutic springs. Admission is Tokyo's standard sentō rate of ¥550, with sauna and bedrock bath extra. Open 12:00–24:00, from 08:00 on Sundays; closed Mondays (open if a holiday). Close to Meguro and Gotanda, it pairs perfectly with snacking along the Palm shopping arcade. Soap and shampoo provided.
- Price (adult)
- ¥600
- Hours
- 12:00–24:00 (Sun from 08:00)
- Closed
- Mon (open if a holiday)
- Access
- 5 min on foot from the east exit of Musashi-Koyama Station (Tōkyū Meguro line); about 10 min by Tōkyū bus from JR Gotanda Station
- Water type
- Bicarbonate spring
- Tattoos
- Ask ahead
- Admission
- Adults ¥600 (Tokyo’s uniform sento rate) / elementary ¥200 / preschool ¥100 (up to two kindergarteners free per adult). Sauna +¥450 (bath towel included). Bedrock bath ¥1,500 (women only). No towels or shampoo provided — bath sets sold. Free onsen egg and green juice
- Baths
- Indoors: kuroyu main tub (with electric bath and three jets), kuroyu cold plunge and sauna. Two-level semi-open area: black-water rock bath below, round stone “Golden Bath” up the steps. Every tub is spring water. Women-only bedrock bath
- Water
- Two sources: (1) kuroyu “Shimizuyu” from 200 m — sodium bicarbonate spring pH 8.3, amber and silky, heated and recirculated; (2) “Golden Bath” (source Jiyu-no-izumi Furo-no-yama) from a deeper stratum — sodium chloride strong-salt spring pH 7.8, hypertonic, ochre and cloudy, free-flowing with no dilution, heating or chlorination
- Parking
- 12 spaces (2 h free). 5 min on foot from Musashi-Koyama Station (Tokyu Meguro line)
- Phone
- 03-3781-0575
- Official site
- shimizuyu.com ↗
- Open in Google Maps
- Google Maps ↗
Essentials
Stay in this onsen town
Compare and book stays in Tokyo City. Day bathing itself needs no booking.
Opens partner booking site (affiliate)
Why go
- Two springs: black and golden water
- Free-flowing onsen at ¥550 sentō price
- 5 min from station; Sundays from 8 am
Two springs for a sento fare: black water and the free-flowing “Golden Bath”
Shimizuyu is an onsen bathhouse in Musashi-Koyama, Shinagawa ward, near Tokyo’s longest shopping arcade, Palm. The building, rebuilt in 2008, looks like a small hot-spring inn, yet the fare is Tokyo’s standard ¥600 — and for that you get two completely different springs, which Tokyo onsen fans call a miracle. One is amber kuroyu from 200 m down, a sodium-bicarbonate water as silky as skin lotion; the other is the “Golden Bath” from a deeper stratum, an ochre, salty strong-salt spring served free-flowing with no dilution, heating or chlorine. The indoor tub and cold plunge are all black water, with the Golden Bath on the upper level of the two-tier semi-open area, so regulars alternate golden bath and black cold plunge. Sauna is +¥450 and there is a women-only bedrock bath. Two stops from Meguro on the Tokyu line — the easiest genuine free-flowing onsen from a central hotel.
Tips & cautions
- Closed Mondays (open if a holiday). Sundays from 08:00 — Sunday morning is the quietest.
- No towels or shampoo — buy a set or bring your own. ¥100 refundable lockers.
- A popular bathhouse: from evening the tubs hold only 2–3 each and the sauna has queues.
- The Golden Bath is hypertonic and salty — short dips, repeated.
- No stated tattoo policy — check on site.
- Free onsen egg and green juice afterwards; pair with a stroll along the Palm arcade.
Getting there
5 min on foot from the east exit of Musashi-Koyama Station (Tokyu Meguro line) — Koyama 3-9-1, Shinagawa-ku. Two stops (~4 min) from Meguro, ~15 min from Shibuya. 12 parking spaces (2 h free). Tel. 03-3781-0575.
Before you go
- No official tattoo policy is published — ask at reception.
- Payment is usually by ticket machine in cash — bring coins.
- Last entry is 30–60 minutes before closing.
Features
Sauna & wellness
Price
Who with
Mood & scenery
Amenities
✔ Verified operating: 2026-09 Operating status and rates cross-checked against the official site and onsen guides (full source notes in Japanese on the JA page)
Prices and hours change. Check official sources before visiting.
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Kaiseiyu Onsen Bathhouse (Kamata)
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