Mount Fuji: Hiking and climbing Mount Fuji is a popular adventure activity.
https://www.japan-guide.com/e/e2172.html
Hakone: A mountain resort town with hot springs, hiking trails, and scenic views of Mount Fuji.
https://www.hakonenavi.jp/international/en/
Tokyo Disneyland & DisneySea: Many rides and attractions offer a thrilling experience.