Mount Fuji, Japan's highest point. If you come to Japan, Mount Fuji is a must see.
The easiest and most convenient way to get to Kawaguchiko Station or Mount Fuji Station (Yamanashi Prefecture), the entry points to Mount Fuji, is by highway bus.
Avoid all the changes needed if you took the train. Plus, the journey time doesn"t differ too much. Whether you take bus or train it will take about 2 hours, so the cheaper, direct option is highway bus.