Onsen OniOnsen Oni

Hotel Sanrakuso

ホテル三楽荘

Lodging
Nanki-Shirahama Onsen
Kansai·Wakayama
+81 739-43-1111sanrakuso.co.jp

Day Use

Yes
Mon15:00–21:00
Tue15:00–21:00
Wed15:00–21:00
Thu15:00–21:00
Fri15:00–21:00
SatClosed
SunClosed
Public holidaysClosed

except Saturdays, Sundays, and holidays

Bathing & Water

Indoor BathYes

Enclosed indoor bathing area

OnsenYes

Uses natural hot spring water

Capabilities

Room OnsenYes

Private onsen bath in guest rooms, for overnight guests only

Mixed BathingNo

Shared bathing area for all genders

Policies & Services

TattooWith Conditions

Allows entry with visible tattoos

Cover required

WashingYes

Shower, wash stations, soap and shampoo provided

藤乃春

Fujinoharu Spring

Operated by · 藤乃春有限会社

Sampled at wellhead
塩
Chloride
+ Bicarbonate
Classification

Sodium Chloride-Bicarbonate spring

A sodium-led chloride spring with bicarbonate softness layered in, emerging at a striking 75.8 °C — among Japan's hottest natural sources. Weakly alkaline, with a faintly salty tang on the lips and a quiet, moderately mineralized body. A generous 125.7 mg/kg of metasilicic acid leaves the kind of silica film that smooths the skin, placing it firmly in the Japanese "beauty-water" family.

pH
7.60
Weakly alkaline
Source temperature
75.8°C
Hot
Tonicity
7.12g/kg
Hypotonic
Flow rate
191L/min
Typical
Free CO₂
91mg/kg
Low
Color
colorless and clear
Taste
weakly salty
Odor
odorless
Highlights
  • Top-decile hot
  • High silica

Analyzed Feb 15, 2023·和歌山県環境衛生研究センター·Cert no. 温泉第1106号

About

A beachfront hotel right beside Shirahama's famous white-sand beach, with two distinct spring sources: a smooth mountain spring (Fuji no Yu) and a mineral-rich ocean spring (Shokkan no Yu) that heats the body deeply. In summer (July through September) the hotel operates a swimwear-required mixed outdoor bath called Sanrakumaru, guests can move between the pool and the onsen directly. All rooms face the ocean.

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3.0

1 review

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Sergey M
1 year ago

628. Hotel Sanrakuso, Shirahama, Wakayama ★ Visited on higaeri using the tegata. Higaeri stated as 15:00 to 21:00 (not on Saturdays, Sundays, and holidays). M/F bath rotation - I was in Yoimachi. Part of the Shirahama tegata (2 stickers). They sell the 12 Onsen of Wakayama stamp. The hotel has some Showa-era vibes. On service - the male staff I saw were trying to handle Russian-speaking foreign guests checking in without any English knowledge, doing everything very stiffly. The onsen's special feature is, surprisingly, a projector that broadcasts videos "for atmosphere" right into the bath area. Baths: 1. Wooden bath with clear water, some rare foam on the surface. 40 degrees. 2. Sunken bath. Slightly cloudy blue water. Proper sulfurous onsen smell. 41-42 degrees. A fairly average place, but worth noting for the unusual projector feature and the water in the second bath. 17.06.2025