Onsen OniOnsen Oni

Kansai Airport Spa Hotel Garden Palace

関空温泉ホテルガーデンパレス

Lodging
Kansai·Osaka
+81 72-462-4026gardenpalace-spa.co.jp

Bathing & Water

Indoor BathYes

Enclosed indoor bathing area

SaunaYes

Dry heat sauna room

Cold BathYes

Cold water plunge bath, typically used after sauna

OnsenYes

Uses natural hot spring water

Capabilities

Private BathYes

Private bath available for day-use visitors or hotel guests to reserve

由松乃湯

Yumatsu no Yu

Operated by · 株式会社由松総本店

Sampled at wellhead
湯
Simple
Classification

Sodium-Calcium Bicarbonate spring

Yumatsu no Yu, rising in Nakamachi, Izumisano, is a simple thermal spring classified hypotonic, neutral, and low-temperature. Its neutral pH makes for a gentle, low-irritation water, while a respectable 65.8 mg/kg of metasilicic acid leaves the skin feeling smooth. At 27.3 °C the source is a low-temperature spring, reheated for bathing.

pH
7.10
Neutral
Source temperature
27.3°C
Low temp.
Tonicity
0.29g/kg
Hypotonic
Flow rate
400L/min
Typical
Free CO₂
20mg/kg
Low
Radon
13Bq/kg
Low
Color
colorless and clear
Taste
tasteless
Odor
odorless
Highlights
  • High silica

Analyzed Jul 12, 2018·日本水処理工業株式会社

Highlights

Jet Bath

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3.0

2 reviews

from 1 reviewer

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SM
Sergey M
7 months ago

702. Kansai Airport Spa Hotel Garden Palace, Izumisano, Osaka (pt.1) ★ Stayed overnight, didn't get food. The hotel is 15 minutes by car from Kansai Airport (KIX). The hotel has regular rooms, but there's also an option to book an entire Japanese house for about 20,000 yen. On TripAdvisor it was listed as 75 square meters, but in reality the whole building is about 50 sqm (which is still decent). It's a separate standalone house located next to the hotel building. From the outside it looks like a business hotel, but the staff seemed very attentive and warm — possibly one of the business owners was there. Nicely decorated inside, with a small koi pond by the hotel entrance. The onsens are in the main hotel building. There's a rotation of baths between men and women. Private baths are available, but I didn't book one. A solid place. Worth keeping in mind when choosing accommodation near KIX, but better to book a regular room. The house makes sense for a large group or if you want that kind of experience. 15.11.2025 16.11.2025

SM
Sergey M
7 months ago

702. Kansai Airport Spa Hotel Garden Palace, Izumisano, Osaka (pt.2) ★ About the onsens: 1. First set of baths (rotated between men/women). 1.1. Indoor bath. Clear water, around 41°C. Comfortable to breathe inside. 1.2. Sauna. 1.3. Reclining bubble bath for three. Located on a kind of indoor balcony with access to fresh air from outside. 1.4. Barrel with cold water. 2. Second bath (rotated between men/women). Clear water, seemed to have a slightly greenish tint. Around 41°C. Comfortable to breathe inside. Bath photo from the internet — accurate. 15.11.2025 16.11.2025