Mount Fuji is the tallest mountain in Japan and one of the most famous mountains in the whole world. It is also an active volcano. You can hike to the summit in about six hours and there are multiple service huts along the route to make the climb slightly less daunting. If you’re really crazy brave, you can hike at night and then watch the sunrise at the top. For a variety of reasons (some rational - like not having enough time, some irrational - like fear of tumbling down to my doom), Saad and I did not attempt to hike it (this time).