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Nerima Onsen

Nerima, Tokyo, Japan
Nerima Onsen
Location
Nerima, Tokyo, Japan
Water type
sodium chloride
Temperature
41 °C
pH
7.3

Water profile

Thermicity
Sedative
41 °C
LowHigh

Relaxing — deep, immediate muscle release.

Mineralisation
Restorative
LowHigh

Loaded with major ions — the essential minerals (Ca, Mg).

Buoyancy
Effortless float
LowHigh

Dense, salty water — you float without effort.

SodiumChloruresBrome

Nerima Onsen provides siliceous mineral bathing in Nerima Ward in northwestern Tokyo, whose remarkable cultural identity as the birthplace of Japanese anime—the first postwar animation studio, Toei Animation and later Mushi Production, were established here in the 1950s and 60s—gave rise to an animation industry tradition that continues in the many production studios clustered in Nerima's residential streets, making this ward the spiritual home of Japanese animated art from Astro Boy and Dragon Ball to Doraemon and Pokémon. The thermal waters serve a ward whose anime heritage is celebrated at the Nerima City Museum and Tezuka Osamu exhibition spaces, where the life work of Japan's 'god of manga' Osamu Tezuka is honored in a ward that nurtured his studio and the careers of the animators who defined Japanese visual storytelling for the world. The deep anime heritage of Nerima's cultural identity, Shakujii Park's forested calm, and the warm mineral waters of the neighborhood onsen create a bath experience embedded in the creative tradition that gave the world Japan's most globally influential art form.

Insider tip — Nerima Ward in northwestern Tokyo was once farmland famous for supplying daikon radishes to the city, and it retains more green space per capita than most inner wards. The local sento draws deep black thermal water, high in sodium chloride and organic humic compounds, which produces a warming, skin-conditioning bath beloved by the many elderly residents. Nerima is also the origin of the anime industry in Japan, and several studios remain active here — a fact that delights enthusiasts on a neighbourhood walk.
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Frequently asked questions

How hot is the water?
The water runs quite hot here, around 41 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features sodium chloride water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).