Japanese scientists will give you a plodding, detailed explanation for this phenomenon, but a folk legend gives a more romantic answer.

The last image in the clip is a panorama - if you scroll way over to the right, you can see the entire lake.

What a beautiful lake. I want to visit Japan one day.

That is really cool....or should I say, hot.

Your work on this clip is excellent, Alanocu.

Japan is so beautiful. Lovely story.

I want to meet those dragons...

It's really beautiful!

beautiful & freezing pictures

leave it to Alan to come up with a great interesting clip