بحيرة أُوسوّي 碓氷湖
A lake of vivid colors
Located in Annaka City in western Gunma, this man-made lake is easily recognized by its idyllic red iron bridge that emerges from the dense green forest to cross the edge of the lake. To truly savor the atmosphere, you can take a 20-minute stroll along the walking path that circles the entire lake. If you visit in the fall, make sure to have your camera ready, as the red and gold leaves are simply stunning.
The 17th-century brick Usui 3rd Bridge is just 10 minutes away
The old Nakasendo Highway from Kyoto to Tokyo passes close to the lake
How to Get There
On foot, you can also follow the Apt Road, a 13-kilometer walking trail along disused railway lines from Yokokawa to Kumanodaira stations. It takes about 30 minutes from Takasaki Station to Yokokawa Station on the Shinetsu Main Line.