I made another stay at the Chinzanso hotel and was able to enjoy their sea of clouds for a second time. They still do the big sea of clouds at the start and end of the day, but not the blue lights from last year. Hopefully, they will keep on doing this for a while, although it does mean that the garden remains closed to non-guests.
UPDATE 2024: In addition to the sea of clouds, they’ve added a moon called Tokyo Moon, shown in the second video.
Watch the sea of clouds at Chinzanso Hotel in Tokyo
Watch the Tokyo Moon at the Chinzanso Hotel in Tokyo
A slideshow of some pictures of the “Sea of Clouds”
Hiking Around Tokyo 