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Matsuzaki Onsen

Matsuzaki, Shizuoka, Japan
Matsuzaki Onsen
Location
Matsuzaki, Shizuoka, Japan
Water type
sulfurous
Temperature
43 °C
pH
6.5

Water profile

Thermicity
Sedative
43 °C
LowHigh

Relaxing — deep, immediate muscle release.

Mineralisation
Bio-active
LowHigh

Rich in active gases or metals — a strong mineral character.

Buoyancy
Standard buoyancy
LowHigh

Soft water — natural, classic buoyancy.

SoufreSulfuresSulfates

Matsuzaki Onsen takes its name from a coastal cape or headland — zaki meaning a projecting point of land — suggesting a spring located at or near a dramatic coastal promontory where land meets sea in a geological configuration that has historically provided both visual grandeur and the concentrated geothermal energy typical of tectonically active coastal zones in Japan's volcanic archipelago. This naturally heated thermal spring offers visitors the distinctive pleasure of bathing in mineral water in a setting shaped by the powerful intersection of volcanic earth and coastal geography, a combination particularly common on Japan's volcanic peninsula coasts where the ocean's presence amplifies the elemental character of the landscape. Matsuzaki Onsen invites bathers to experience the atmospheric intensity of coastal geothermal bathing, where the sound of the sea, the drama of a headland landscape, and the warmth of naturally rising volcanic spring water create a sensory environment of exceptional natural richness.

Insider tip — Matsuzaki Onsen lies on the remote western coast of the Izu Peninsula in Shizuoka, where sulfurous volcanic waters emerge near dramatic sea cliffs carved by Pacific waves. The spring was historically a waypoint for sailors and fishermen, and the town retains distinctive namako-kabe plaster walls characteristic of Izu's vernacular architecture. The waters' sulfur content gives them a faint egg-like aroma and a soothing, skin-softening quality. Sunrise views from coastal rotenburo baths, with the Pacific glowing orange, rank among Izu's most memorable experiences.
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Frequently asked questions

How hot is the water?
The water runs quite hot here, around 43 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features sulfurous water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).