Mt. Fuji has the distinction of being Japan’s highest mountain while also being reasonably accessible for fit hikers to climb in one day. The route is non-technical, and the tourism boom around the peak means plenty of transportation, services, and information available for people interested in summiting. Paved roads go nearly halfway up the mountain, with 10 “stations” along the way, complete with ample signage and warnings about potentially hazardous terrain.
Depending on which route you choose and whether you want to see the sunrise, you can start hiking at night from one station, and catch a few hours of sleep at a higher-elevation station later. From there, you can get an early start and reach the summit just in time for sunrise. Fit hikers can do this in one day, but many people will want to stay overnight at a hut. This is a summer-only hike, and since it’s such a destination, the area can get very crowded. Be prepared for an influx of hikers especially on summer weekends; try to hit this peak on a weekday if you can.