
challenging
9–12 hours
Expect long climbs and long descents; riders should have solid endurance and previous multi-hour rides in their legs.
Start at Odawara, climb historic Hakone and take on the Fuji Subaru Line—the highest paved road you can cycle in Japan. This private, fully supported day ride pairs high-quality bikes and mechanics with long climbs, volcanic landscapes, and unrivaled Fuji views.
The morning begins at Odawara Station: a cold breath of air, the clack of trains, and a staff member in a red helmet holding a sign with your name. You unload your legs, check tire pressure, and push off along the old Tokaido—stone markers and rice paddies give way to rising pine slopes and the first sightlines of Hakone. The road climbs with intention; Hakone dares your rhythm and asks for patience. Past Lake Ashi, where sampans drift like slow punctuation marks, the route turns toward the Fuji foothills and the long, technical pitch of the Fuji Subaru Line.

Depart at first light to avoid afternoon traffic and to catch clearer views on the Subaru Line before clouds build.
Temperatures can drop 10–15°C between Odawara and 2,000m—carry a lightweight wind shell and arm warmers.
Carry 1–1.5 L of water and energy snacks; the support car provides bottled water and lunch, but you’ll burn many calories on long climbs.
Use easier gears early and keep a sustainable cadence—many riders underestimate sustained gradients on the Subaru Line.
The route follows the old Tokaido corridor and approaches Mount Fuji, a site of mountain worship and pilgrimage with centuries of artistic and religious significance.
Stick to paved roads and designated pullouts, pack out all trash, and avoid cycling in closed or restricted areas—local conservation efforts protect fragile alpine vegetation.
Comfort on long climbs and sustained time in the saddle.
Blocks cold gusts above tree line and sudden rain at higher elevations.
spring specific
Fast roadside repairs keep your day on schedule; support car helps but you should be self-sufficient for small issues.
Improves pedaling efficiency on long climbs; choose what you ride confidently with.
summer specific