Onsen OniOnsen Oni

Sanso Kannawaen

山荘 神和苑さんそう しんわえん

Lodging
Beppu OnsenKannawa Onsen
Kyushu & Okinawa·Oita
0977-66-2111kannawaen.jp

Bathing & Water

OnsenYes

Uses natural hot spring water

山荘神和苑

Sanso Kannawaen Spring

Operated by · 株式会社 山紳

Sampled at wellhead
塩
Chloride
+ Sulfate
Classification

Sodium-Calcium Chloride-Sulfate spring

A high-temperature sodium-calcium chloride-sulfate spring rising at 98 °C — chloride leads, with sulfate adding quiet body underneath. Weakly alkaline and moderately mineralized (1.7 g/kg dissolved), it carries a generous 220 mg/kg of metasilicic acid that leaves skin noticeably smoother. The water shows a faintly milky cast with a slight salty edge and the unmistakable wisp of hydrogen sulfide.

pH
7.90
Weakly alkaline
Source temperature
98.1°C
Hot
Tonicity
1.71g/kg
Hypotonic
Free CO₂
8.40mg/kg
Low
Free H₂S
8.40mg/kg
Very high
Color
faintly milky white and clear
Taste
very slightly salty
Odor
faint hydrogen sulfide
Highlights
  • High silica
  • Top-decile hot

Analyzed Aug 15, 2016·公益社団法人 大分県薬剤師会検査センター·Cert no. 大薬検 第7R-28080001号

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SM
Sergey M
1 year ago

490. Sanso Kannawaen, Beppu (pt.2) ★★★ 2. Indoor zone. Breathing inside is good. 2.1. Large stone bath with blue milky cloudy water, temperature 43. 2.2. Steam cabinets. 3. Simple bath in the room with clear water. Temperature was around 42. Amazing place, highly recommended for staying in Beppu. 05.04.2025 06.04.2025

SM
Sergey M
1 year ago

490. Sanso Kannawaen, Beppu (pt.1) ★★★ Stayed overnight, located in the Kannawa area. Had the double breakfast, it was a solid Japanese-style one. Not included in the Beppu Onsen-do, no stamp. Accommodation only, no higaeri available. Rooms come with onsens ranging from simple indoor baths to small stone rotenburo. 1. Outdoor zone. Super amazing view of Beppu and the bay, both at night and during the day. Very impressive. 1.1. Large bath with blue milky cloudy water, temperature 43-45 depending on the spot. 1.2. Barrel bath, water temperature 46. 1.3. Barrel bath, water temperature 44.5. 1.4. Barrel bath, water temperature 42.5. 05.04.2025 06.04.2025