Diamond Fuji is an amazing phenomenon which combines the sunrise and Mt Fuji. When the sun seems to rise out of the top of Mt Fuji, it is called "Diamond Fuji."
At Mt Ryugatake, this phenomenon happens on New Year's Day. The mountain's peak is 1485 metres above sea level.
Parking will be very crowded and it will be very cold, so bring warm clothes. There may be snow on the trail!
The sunrise effect will appear between 7:40 and 8:00, so you need to start climbing at about 5:00 to get to the right place and enjoy the view.
The best spot for the view is not the peak of Mt Ryugatake but a lookout just before the top.