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GENKIONSEN BANPAKU OYUBA

源気温泉 万博おゆばみなもときおんせん ばんぱくおゆば

Bathing Complex
Kansai·Osaka
06-6816-2600oyuba.com

Day Use

Yes

Bathing & Water

Outdoor BathYes

Open-air outdoor bath

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 BathNo

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

Policies & Services

TattooNo

Allows entry with visible tattoos

KidsYes

Welcomes children and families

DiningYes

Restaurant or dining open to visitors (not just hotel meal plans)

WashingYes

Shower, wash stations, soap and shampoo provided

TowelsYes

Towels available to rent or borrow

Rest AreaYes

Relaxation space for after bathing

ParkingYes

On-site or nearby parking available

万博温泉

Banpaku Onsen

Operated by · ツルカメD&E株式会社

Sampled at wellhead
塩
Chloride
Classification

Sodium-Calcium Chloride spring

A sodium-calcium chloride spring drawn from a 25.3 °C wellhead beneath the Banpaku Expo park. Neutral pH and a salty, mineral-tinged taste reflect 6.3 g/kg of dissolved solids — moderately mineralized with noticeable body. Because the source itself is classed as a low-temperature spring (under 34 °C), the water is heated before bathing. A generous 117 mg/kg of metasilicic acid puts it in the Japanese 'beauty-water' family, leaving a thin silica film that makes skin feel noticeably smoother afterwards.

pH
6.50
Neutral
Source temperature
25.3°C
Low temp.
Tonicity
6.26g/kg
Hypotonic
Flow rate
100L/min
Typical
Free CO₂
263mg/kg
Typical
Color
colorless and clear
Taste
slightly salty
Odor
with a mineral note
Highlights
  • High silica

Analyzed Jul 4, 2022·日本水処理工業株式会社·Cert no. No.22R-010

Highlights

Jet Bath
Ganbanyoku

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SM
Sergey M
1 year ago

308. GENKIONSEN BANPAKU OYUBA, Osaka Super sento with natural hot spring water for 870-970, 40-50 minutes from Osaka station. Operating hours listed as 10:00-01:00. They stamp the 41 Kansai Super Sento stamp rally 24/25. Has a restaurant, massage (got one — they did a good job), massage chairs, chill zones, and a gift shop. Has a stone bath. Bath photos from the internet, matches reality. 1. Outdoor area, no view. 1.1. Large shallow multi-level bath with a stone cone in the center, cloudy white-brown water, temperature around 40. 1.2. Rectangular bath with cloudy white-brown water, temperature around 40. 1.3. Round silk bath. 1.4. Steam bath. 1.5. Rectangular carbonated bath with a sign in the center, temperature around 38. 2. Indoor area. 2.1. Main bath, clear water, temperature around 40. 2.2. Additional bath, clear water, temperature around 36. 2.3. Three seated jet baths, temperature around 38. 2.4. Two standing jet baths, temperature around 39. 2.5. Sauna. 2.6. Cold bath. Interesting place — the water and rotenburo are unusual, worth considering for trips near Osaka.