Fuji Five Lakes (Fujigoko)
Arakurayama Sengen Park - a world-famous viewing spot of Mount Fuji in Yamanashi Prefecture
Seeing Mt Fuji on Shinkansen from Kyoto to tokyo
Fuji-Q Highland - amusement park
Takabisha - Steepest Roller Coaster in the world, 121º
The most terrifying coaster with a maximum falling angle of 121 degrees!
Takabisha World's Steepest Roller Coaster POV Fuji-Q Highland Japan
Unfortunately it’s closed if raining, and it rains a lot in Fujikawaguchiko.
Mt. Fuji Panoramic Ropeway - https://www.mtfujiropeway.jp/en/guide/
Sake tour/tasting
Brewed with Mt.Fuji spring water,Breweed of Nihonshu,KainoKaiun,IDE SAKE BREWERY(Sake Tour)
Museums
Vegan restaurant - La Luce. Aladdin also has vegetarian options.
This was the best meal I had here - https://www.yelp.com/biz/とみふじ-南都留郡, however, it has 0 vegetarian options.
Day trip to Aokigahara
Meguro Sky Garden - viewpoint
Arakura Fuji Sengen Jinja Shrine, 2-chome-4-1 Asama, Fujiyoshida, Yamanashi, Japan