We will not find a more distinctive mountain anywhere.
Cycling Mt. Fuji on Route 150 from Oyama-chō to the Komitake Shrine - a Top 100 World Climb up the tallest mountain in Japan. We begin our climb by traveling east on Higashi-Fuji-Goko Road (Road 138) and traveling about 6 miles / 10k up 35+ hairpins to Fuji Azami Line Fifth Station. From here we can walk several more miles to the summit of Mt. Fuji, but it is an impossible path by any type of bike.
Wikipedia says of Mt. Fuji:
“Mount Fuji is located on Honshu Island, is the highest mountain in Japan at 3,776.24 m (12,389 ft). It is an active stratovolcano that last erupted in 1707–1708, Mount Fuji lies about 100 kilometres (60 mi) south-west of Tokyo, and can be seen from there on a clear day. Mount Fuji's exceptionally symmetrical cone, which is snow-capped for about 5 months a year, is a well-known symbol of Japan and it is frequently depicted in art and photographs, as well as visited by sightseers and climbers.
Mount Fuji is one of Japan's "Three Holy Mountains" along with Mount Tate and Mount Haku. It is also a Special Place of Scenic Beauty and one of Japan's Historic Sites. It was added to the World Heritage List as a Cultural Site on June 22, 2013.” https://en.wikipedia.org/wiki/Mount_Fuji
This website is excellent and tells you all you need to know about hiking to the top of Mt. Fuji - https://www.garyjwolff.com/climbing-mt-fuji.html#1