Mount Fuji is to Japan what the Great Wall is to China, that is to say a must-see place in your trip.
It is possible to reach Mount Fuji from Tokyo by train via Otsuki (ideal if you have a JR Pass) or by bus from Shinjuku (which we did), which will take you to Kawaguchiko station, near one of the lakes bordering Mount Fuji.
Our hotel had a terrace with a view of Mount Fuji, so we were able to enjoy the sunrise the day after our arrival.
Climbing Mount Fuji is unfortunately only possible until mid-September, so we decided to rent bicycles and cycle around the lakes Kawaguchiko and Sai, which allowed us to have very beautiful views of Mount Fuji.
To see more about Mount Fuji, you can watch the following video: