Photo by 663highland, via Wikimedia Commons (CC BY 2.5)
🇯🇵 Japan · Shirahama, Nishimuro District, Wakayama Prefecture
Photo by 663highland, via Wikimedia Commons (CC BY 2.5)
🇯🇵 Japan · Shirahama, Nishimuro District, Wakayama Prefecture
♨ Temperature
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⛰ Altitude
0 m
⚗ pH
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💧 TDS
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🌊 Flow rate
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📅 Established
7th century
✓ Verified on 2026-07-28
Shirahama Onsen (also known historically as Muro-no-yu) is counted among Japan's three ancient hot springs, alongside Dogo Onsen and Arima Onsen. It appears in the Nihon Shoki (compiled c. 720), the Kojiki, and the Man'yoshu poetry anthology, with imperial visits recorded from the late 7th century under Emperors Tenji, Jito, and Mommu. Spring temperatures across the resort's sources range from about 32°C to 85°C, and it began attracting general public visitors during the Edo period, around 1600.
Shirahama is documented in the Nihon Shoki, Kojiki, and Man'yoshu under the name Muro-no-yu, with Emperors Tenji, Jito, and Mommu recorded as having traveled there for treatment and rest in the late 7th and early 8th centuries.
AddressShirahama, Nishimuro District, Wakayama Prefecture, Japan