The sea of clouds seen from the summit of Mt. Kamoi is a fantastic and moving sight that can only be experienced by those who have seen it, as befits the grandeur of Hokkaido.

What is a sea of clouds?
A sea of clouds is a natural phenomenon in which fog and stratus clouds are generated over a wide area due to radiative cooling in mountainous areas.
Conditions for occurrence
It is most likely to occur in spring or autumn. They tend to occur from dawn to early morning when humidity is high and there is sufficient radiative cooling.
Please note that this is a natural phenomenon and should be used only as a guide for outbreak conditions.