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Oiso, Kanagawa

THERMAL SPA S.WAVE (Oiso Prince Hotel) — Oiso sauna spa with an ocean infinity pool

In Oiso, Kanagawa, THERMAL SPA S.WAVE is the spa building of the Oiso Prince Hotel. The 3rd floor has natural hot-spring baths, indoor and outdoor; the 4th floor is a swimsuit spa floor for men and women together, with an infinity pool, several saunas at different temperatures, terraces and a bar. Everything below is based on the official website.

The Finnish sauna
The panoramic sauna facing the sea
The snow-filled ice room
Jet baths at dusk
The terrace with a view of Mt Fuji

6 photos · © Oiso Prince Hotel (official website “THERMAL SPA S.WAVE”) · Tap any photo to view it full size

LocationOiso Prince Hotel spa building, 3F–4F, Kokufuhongo, Oiso, KanagawaSaunasFinnish sauna (80–100°C), panoramic sauna (40–50°C), stone sauna (about 55°C), tepidarium (about 35°C), ice room (10–15°C), cool bathRules4F spa floor: ages 12+, swimsuits required (rental swimsuits available)

Introduction

A journey of changing temperatures

The official site describes the concept as a journey that frees you from everyday life.

You move between saunas at different temperatures and humidity, changing how you sit and lie. Because the 4th floor is a swimsuit area, couples and friends can spend it together.

01 · Sauna

Finnish sauna at 80–100°C

Steam falls regularly, raising the humidity and the felt heat. The official site suggests staying 5–10 minutes.

02 · Panoramic sauna

A sauna facing the sea and Mt Fuji

A gentle 40–50°C sauna looking out over Mt Fuji and the Pacific. Suggested stay: 30 minutes.

The panoramic sauna facing the sea
The panoramic sauna facing the sea

03 · Cooling down

Ice room and cool bath

The 10–15°C ice room cools you with fresh snow and cold air. There is also a deep cold-water cool bath.

The snow-filled ice room
The snow-filled ice room

04 · Pool and terrace

Infinity pool and Fuji Terrace

A warm infinity pool designed to melt into the horizon, and jet baths facing the Pacific.

From the terrace you can also see Mt Fuji.

Jet baths at dusk
Jet baths at dusk
The terrace with a view of Mt Fuji
The terrace with a view of Mt Fuji

05 · Hot spring

The 3rd-floor hot-spring baths

Separate natural hot-spring baths for men and women, indoor and outdoor. Hotel guests use them at no extra charge.

The 3rd-floor hot spring
The 3rd-floor hot spring

What is a tepidarium?

A low-temperature room that warms you with gentle radiant heat from the benches and walls.

The tepidarium at S.WAVE is about 35°C, with natural aroma and rippling light for quiet rest.

OperatorOiso Prince Hotel
Photos© Oiso Prince Hotel (official website “THERMAL SPA S.WAVE”)
SourcesOiso Prince Hotel official website

この住所までお願いします。

神奈川県中郡大磯町国府本郷546
THERMAL SPA S.WAVE(大磯プリンスホテル)

THERMAL SPA S.WAVE (Oiso Prince Hotel) — Oiso, Kanagawa, Japan

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