Kamata Onsen

Closed for an extended period for renovation from October 19, 2026, with reopening planned for April 2027; the following describes the facility before the closure. A 13-minute walk from the East Exit of JR Kamata Station (12 minutes from Keikyu-Kamata Station), Kamata Onsen is a long-established public bathhouse founded in 1937. It draws on undiluted natural kuroyu (black) hot spring water, among the darkest in the Kamata area, with two black-water tubs: a lower-temperature bath (around 40-42°C) and a scorching high-temperature bath (around 45-50°C). The facility also has an electric bath, a jet bath, and a roughly 18°C cold bath. Separate men's and women's saunas are available for an extra ¥300 (a 12-visit sauna ticket costs ¥3,000). Admission is ¥600 for adults (age 12+), ¥200 for elementary-school children, and ¥100 for preschoolers; a "bare-essentials" set (¥900, includes admission) with a bath towel, face towel, body soap, and rinse-in shampoo is available for guests arriving empty-handed. Cash only. On the 2nd floor, Kamata Onsen Dining serves the bathhouse's signature hot-spring kamameshi rice and Ota-ku's local shio yakisoba, and doubles as a banquet hall seating about 80. Free parking is available for 2 cars. The official site's English page states that tattoos are allowed. Mixed bathing is limited to children under age 6 and under 120cm tall.

Adult (weekday)

¥600

Adult (weekend)

Unconfirmed

Child

¥200

Time limit

No time limit

Sauna surcharge

Unconfirmed

Ganban'yoku surcharge

Unconfirmed

Late-night surcharge

Unconfirmed

Towel

Not included

Roomwear

Unconfirmed

Adults (age 12+) ¥600, elementary-school children ¥200, preschoolers ¥100. Sauna use is an extra ¥300 (a 12-visit sauna ticket costs ¥3,000). A "bare-essentials" set (¥900, includes admission) comes with a bath towel, face towel, body soap, and rinse-in shampoo. Cash only. The official site lists the bare-essentials set at both ¥900 and ¥800.

Source: Official website · verified 2026-10-19

Opening hours

10:00 – 24:00

Last entry

Unconfirmed

Closed

—

The facility is closed for an extended period for renovation work due to aging facilities, starting Monday, October 19, 2026, with reopening planned for April 2027. The hours and closed-day information above reflect the official site's regular-operation listing prior to the closure.

Source: Official website · verified 2026-10-19

Dry sauna

Unconfirmed

Dry sauna · Auto-löyly

Unconfirmed

Dry sauna · Aufguss event

Unconfirmed

Cold plunge temperature

18°C

Open-air rest space

Unconfirmed

Source: Review site · verified 2026-09-16

Spring type

Sodium bicarbonate-chloride cold mineral spring

Natural hot spring

✓

Open-air bath

—

Carbonated bath

Unconfirmed

Baths

Jet bath / Electric bath / Kuroyu (black hot spring water)

Facilities

Restaurant / Rest area / Wi-Fi / Parking

Payment

Cash

Amenities

Soap and shampoo / Towel rental

English signage

Unconfirmed

Mixed bathing is limited to children under age 6 and under 120cm tall.

Kamata Station (JR Keihin-Tohoku Line)

JR Keihin-Tohoku Line / 13 min walk

Keikyu-Kamata Station (Keikyu Main Line)

Keikyu Main Line / Keikyu Airport Line / 12 min walk

Airport access

Unconfirmed