Yubara Onsen (Open-Air Bath)
Japan's most famous completely exposed outdoor onsen — a large riverbed bath with no walls, no roof, and the Maniwa River a metre away. You bathe under the open sky in all seasons.
Location
Location available to Pro members
Upgrade to ProPro Spot
Upgrade to Pro to access local tips, secret timing, and insider highlights for this spot.
Upgrade to Pro — $4.99/moLocal Tips
Sunayu is Japan's most famous free open-air mixed bath, set directly beside the Asahi River — there is no fence. Arrive early morning when mist rises from the water and the gorge is quiet. The single main street of this tiny spa village takes 10 minutes to walk.
Add to your AI itinerary
Let AI build a multi-day trip around this spot.
Advertisement
More in Okayama
Bizen Pottery Village
The oldest continuous pottery tradition in Japan — 1,000 years of unglazed, fire-patterned ceramics. The village has 30+ active kilns to visit and workshops where you can throw your own pot.
Hiruzen Highlands
A cool alpine plateau at 600m with rolling meadows, Jersey dairy cows and views of the Daisen volcano. Famous for yakisoba and fresh milk soft-serve — genuinely the best in Okayama.
Kibiji Cycling Path
A completely flat 17km cycling route through ancient burial mounds, rice paddies and shrine gates — the prehistoric heartland of Japan. Rental bikes, minimal cars, and café stops throughout.