Eastern Hokkaido - part 1

I traveled Eastern Hokkaido two weeks ago.
These are the photos of Lake Mashu.

The explanation of Lake Mashu is below.

This lake has the most transparent water in the world. There is no river flowing either into it or out of it, and yet the water level of the lake never changes. A small island, called Kamuisshu（little island）, set in the lake gives a symbolic impression, Lake Mashu is almost always fogbound, and it lies mysteriously among the legends which originated among the Ainu people.

It was the third time to visit Lake Mashu. It sure is mysterious every time.
I went there by bike. I went up a steep slope for about an hour!!!
It was really hard to climb, but it is worthwhile doing.
Though you can go there by bus or car, you feel more impressed if you climb by bike.