
Oku-Shima Lake
Oku Kumano-ike
Experience the mystical 'Shima Blue'—a breathtaking landscape where a translucent cobalt blue surface meets lush greenery.Explore this spot

Oku-Shima Lake is a breathtakingly beautiful body of water located deep within the Shima Onsen area. Its most defining characteristic is the mystical "Shima Blue"—a vibrant, translucent cobalt blue water surface.
What makes it special
About Oku-Shima Lake
- Experience the mystical "Shima Blue" up close—a sight that truly captures the heart.
- For the most breathtaking views, visit on a clear, sunny morning when the light hits the water perfectly.
- Enjoy the seasonal beauty of nature while walking along the scenic lakeside paths.
- We highly recommend trying a canoe activity to see the stunning cobalt blue scenery from the water's surface.
Photo gallery
All photosWeather forecast
Tue
8/4
25°/17°
98%
Wed
8/5
25°/18°
43%
Thu
8/6
28°/21°
55%
Fri
8/7
28°/21°
100%
Sat
8/8
26°/20°
95%
Sun
8/9
26°/19°
82%
Mon
8/10
26°/18°
77%
Tips
Payment
Cash only
English Support
Limited English signage available
Reservations
No advance reservation required
Clothing/Items
Wear comfortable walking shoes and seasonal clothing
Photography
Photography is permitted (please follow local etiquette)
Accessibility
Some areas may be uneven; please watch your step
Etiquette
Please carry all trash home to protect the natural environment. Also, be mindful of local vehicle traffic rules around the lake area.


