Sozukyo Hot Spring

With drinkable spring water.

The source of Sozukyo Hot Spring is a natural radon spring that flows forth from 1,000 meters underground. The free-flowing hot spring is highly-rated, and there is even drinkable spring water. A popular day-trip bathing destination.
There are two separate facilities at Sozukyo Hot Spring.



3232 Nishikimachi Fukagawa, Iwakuni City, Yamaguchi Prefecture

Open Hours

Ikoi-no-Ie: Apr.~Nov.: 10:30~18:00, Dec.~Mar.: 11:00~17:30
Nishiki Palace: 11:00~20:00

Closed Day(s)

Ikoi-no-Ie: Thursdays
Nishiki Palace: Dec. 31


Not required for day-trip bathing

Time Required

Around 60 min


Not available


Free shuttle bus from Nishikicho Station on the Nishikigawa Seiryu Line (requires prior communication), or immediate access on foot from Sozukyo Onsen Station on the Tokotoko Train.


Adults: 700 yen, Children under 12: 400 yen

Website (Includes Japanese language-only sites)