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Kozen-yu

弘善湯こうぜんゆ

Public Bathhouse
Kanto·Tokyo

Day Use

Yes
15:30–00:00

Closed Saturdays.

Bathing & Water

Not onsen water

Heated tap water, not a natural hot spring

Programs

About

A traditional miya-zukuri (shrine-style) bathhouse in Shimouma, Setagaya, with a Mt. Fuji penki-e wall painting and an ultrasonic jet bath. The water runs on the hot side, and a free wet sauna is available. After the bath, guests can relax while looking out over the well-kept garden. About a 10-minute walk from Sangenjaya Station on the Tokyu Den-en-toshi Line.

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Onsen Oni

Last updated June 25, 2026