Nirayama Reverbatory Furnaces and Hitoana Fuji-ko Iseki starting at Izunokuni
Plan this ride
Recorded distance
215 km
Riding-time estimate
4 h 14
Journey
Recorded itinerary
Distance and timing basis
Ordered leg totals agree within rounding. Stop distances are approximate sums of rounded legs. Stops, delays, approach and any separate return travel add time. Basis: producer-declared routed record.
Reading history stays on this device. My road watch requires a separate selection; opening it does not subscribe this ride.
Distance and riding time are measured on the routed road. Check local closures and conditions before you ride.
From Izunokuni it runs 215 km to Izunokuni; allow about 4 h 14 of riding. The stops in between: Suyama Sengen-jinja Shrine, Lake Yamanakako, Hitoana Fuji-ko Iseki and back through Lake Yamanakako. The stored terrain estimate reaches about 1,050 m; a measured road-elevation profile is not available. It was put together for the scenery rather than the shortest line.
Scenic road chapters
Hakone Turnpike and Skyline
For about 34 km this is Hakone Turnpike and Skyline, a road with a name of its own and a reason for it — expect company on a summer weekend. Early is better than fast.
Chapter facts
Length
34 km
Named road
Hakone Turnpike and Skyline
Suyama Sengen-jinja Shrine → Lake Yamanakako
Water arrives beside the road and stays for 25 km. The line follows the shore because there is nowhere else for it to go. Slow enough to look. The surface follows the shoreline, so the corners arrive where the water decided, not where an engineer did.
Chapter facts
Length
31 km
Waypoint introductions and full write-ups
1. Nirayama Reverbatory Furnaces
Two pairs of tall brick chimneys stand in a quiet suburb at the base of the Izu Peninsula, looking strangely European against the green hills. They belong to the Nirayama reverberatory furnace, built in the 1850s to melt iron for casting cannons, at a time when Japan felt threatened by Western warships arriving in its waters. The project was led by Egawa Hidetatsu, the local magistrate, a forward-thinking official who studied Western military technology from Dutch books. He died before it was completed, and his son finished the work. It is the only surviving reverberatory furnace of its era in Japan that was actually used for casting, and since 2015 it has been part of the UNESCO site of the Sites of Japan's Meiji Industrial Revolution.
May refer to an earlier itinerary; verify against your selected route before riding.
Planning note
Nirayama Reverbatory Furnaces is where the day begins. Next is Suyama Sengen-jinja Shrine.
2. Suyama Sengen-jinja Shrine
On the southern flank of Mount Fuji, above the town of Susono, a quiet shrine stands among tall cedar trees at the start of one of the oldest climbing routes on the mountain. The Suyama Sengen-jinja is dedicated to the goddess of Fuji and marks the beginning of the Suyama trail, used by pilgrims for centuries before falling into disuse in the twentieth century and being partly revived in recent years. It is one of the component sites of Fujisan, Sacred Place and Source of Artistic Inspiration, listed by UNESCO in 2013.
May refer to an earlier itinerary; verify against your selected route before riding.
Planning note
Suyama Sengen-jinja Shrine comes up about 34 km into the recorded legs. Next is Lake Yamanakako.
3. Lake Yamanakako
Yamanakako is the largest and highest of the Fuji Five Lakes, lying at nearly a thousand metres at the eastern foot of Mount Fuji, and on a clear winter morning, with the snow cone of the mountain mirrored in still water, it delivers the view that sells a million postcards. The lake was formed when lava flows from Fuji dammed the valley, and it is shallow, with reed beds, swans and boating piers along the shore. In summer it is a cool escape from the heat of Tokyo, busy with families, rowing boats and lakeside cafés; in winter the crowds thin and the mountain is at its most impressive.
May refer to an earlier itinerary; verify against your selected route before riding.
Planning note
about 65 km into the recorded legs you reach Lake Yamanakako. Next is Hitoana Fuji-ko Iseki.
4. Hitoana Fuji-ko Iseki
Deep in the lava forests on the western foot of Mount Fuji there is a cave formed when molten rock flowed down the slopes and its crust cooled while the interior drained away. The Hitoana lava tube is small and low, but in the sixteenth century an ascetic called Hasegawa Kakugyo is said to have practised extreme austerities inside it, and he became the founder figure of the Fuji-ko, the popular confraternities whose members climbed Fuji as an act of worship. Around the cave entrance stand hundreds of stone memorials erected by Fuji-ko groups over the centuries, mossy and leaning among the trees. The site is one of the components of the World Heritage listing Fujisan, Sacred Place and Source of Artistic Inspiration.