5. Mine-iri: A Thousand Years of Walking the Peaks

If you love long trails, you already know the type: the Camino de Santiago, Shikoku’s eighty-eight temples, the Kumano Kodō. Sacred routes where the walking itself is the point.

Kunisaki has one too — older than most, stranger than most, and still alive. It is called mine-iri: “entering the peaks.” We have met it in passing throughout this series; for the final dig, it takes center stage. Because this is not just a trail. It is a legend you traverse on foot — and it has been quietly reinventing itself for a thousand years.

What exactly does one do, on a mine-iri?

In one line: walk every sacred site on the peninsula, strung into a single circuit.

The sites are the cast we have been meeting since the first tale: the rock caves, the crag ridges, the stone bridges over gorges, the buddhas carved into cliffs — the whole stage set the volcano built. On an ordinary day they belong to separate valleys. But walk them in one unbroken line, and something happens: the peninsula snaps together into a single, enormous sacred precinct. The walking is what assembles it.

The origin story: a founder who came back to give directions

The legend dates the beginning to the year 855. A monk in training was visited by Ninmon — the founder we investigated in the second dig, who by then had been dead for over a century. The founder personally showed him the route through the peaks.

You know by now how to read such a story (who tells it, and why). But notice what the legend is really claiming: mine-iri means retracing the founder’s own footsteps. If the origin chronicles were the legend in writing, mine-iri is the legend performed — received not through the eyes but through the legs.

Middle ages: the walk that made you a monk

In the medieval heyday of Rokugo Manzan, mine-iri served as the rite of passage for novice monks. Only after walking the full circuit of peaks was a newcomer counted a true ascetic of the mountains. The entrance exam was the peninsula itself.

It likely did something else, too. Monks from rival valleys, walking the same punishing route, praying at the same caves — anyone who has shared a long trail with strangers knows the bond that forms. A federation of scattered temples with no single ruler (tale 7) needs something to hold it together. One good candidate has always been: the memory of the same walk in everyone’s legs.

Edo: the walk becomes a procession

In the great rebuilding era, mine-iri took on the form of a collective, ceremonial event — the whole revived community walking its territory together, part austerity, part declaration: we are back.

Today: white robes, 160 kilometers — and a trail for the rest of us

The practice survived even the forced separation of gods and buddhas, and it continues now on two parallel tracks.

The first is the real thing. Roughly once a decade, the monks of Rokugo Manzan carry out the mine-iri-gyō: white-robed figures gather on sacred Mt. Omoto, pay respects at Usa Jingū, kindle the opening goma fire before the great cliff-carved buddhas of Kumano — and then walk, through some 180 sacred sites and about 160 kilometers, to the final rite at Futago-ji at the peninsula’s heart. Along the way they keep old practices with wonderful names: scattering sacred branches, leaping from boulders. Recent walks took place in 2010 and 2017, and around the 1,300th anniversary of the founding legend, laypeople were invited to join stretches of the route — a thousand-year-old rite of passage, opening its door.

The second track is for everyone. The mine-iri route has been selected among Japan’s 100 Historic Roads, and on its base the Kunisaki Peninsula Minemichi Long Trail now offers marked hiking courses through the same ridges and valleys.

But here is the real evolution

“A monks’ austerity turned into a hiking trail” — you could summarize it that way and stop. We would rather not stop there.

Look at the whole arc: retracing the founder → a novice’s rite of passage → a community’s procession → an open pilgrimage → a marked trail. The direction of travel is unmistakable. Over a thousand years, mine-iri has been evolving from “training” toward “walking the peninsula to feel it.” The long trail is the current form of that evolution — but there is no reason to think the evolution stops with it.

So walk the whole 160 kilometers, if that is your kind of joy. Or walk one section. Or simply climb, slowly, from one temple’s main gate up to its inner sanctuary. Or stand at a trailhead and breathe the mountain air for a minute. Most Camino pilgrims, after all, walk only the final stretch — and nobody doubts they have walked the Camino. Any walk on which you feel something of this peninsula is, we would argue, today’s mine-iri. A thousand-year-old procession that you can join at any length, from any gate.

That, in the words of tale 7, is this peninsula’s signature move: nothing was ever replaced — the practice just keeps widening its embrace.

Today’s haul — and the bottom of the rabbit hole

• Mine-iri is the legend performed on foot: retracing the founder’s route, attested as a rite of passage, a procession, and now a once-a-decade, 160-km observance
• Its modern descendants include a long trail anyone can walk
• And its thousand-year evolution points one way: from training, toward walking to feel — at any length

Which brings this series to its natural floor. The six ancient districts, the founder’s legend, the wandering god, the fused world of kami and buddhas — on this peninsula, none of it stays in books. Walk the paths and it is all simply there: the caves, the stone buddhas, the shrine inside the temple gate.

Every dig in this series has struck the same bedrock: Kunisaki is understood on foot.

Leave the desk. Lace your shoes. Start, if you like, with a single temple path — main gate to inner hall. Safe travels.

And no, the rabbit hole does not end here. Walk this peninsula and new questions climb out of every valley. The series will continue, from time to time.

Worth a Visit: A Ten-Minute Mine-iri — Itsutsuji Fudō

Here is a way in you may not expect. There is an Antony Gormley on this mountain.

The sculptor of the Angel of the North has a life-size iron cast of his own body standing on a cliff edge high on the Kunisaki ridges, facing east over the Inland Sea. ANOTHER TIME XX was installed for the 2014 Kunisaki Peninsula Art Festival: solid iron, some 700 kilograms of it, left to weather and rust in place, watching the sea year after year.

What matters for this dig is how he chose the spot. In the autumn of 2013 Gormley walked this mountain path himself, and picked the ledge where the figure would stand. He walked first; then he decided where to stand. Men in white were doing precisely that on precisely this path more than a thousand years ago.

The installation was not universally welcomed, we are told. A foreign artist’s contemporary work on a thousand-year-old sacred mountain was argument enough; that the figure is nude added more. And yet there it stands — a British sculptor’s own body, left on a Japanese ascetic’s cliff. Whatever this ledge has, it seems to reach across a thousand years and half a world alike.

And the path is the point. The figure stands along the short climb to Itsutsuji Fudō — the rock-shelter sanctuary we reached from below in tale 9, where it is a solid hour’s climb up from the ruins of Old Sento-ji. But drive up to the pass, and the walk is about ten minutes.

Park at the pass and step onto the ridge path. It is short, and it wastes no time telling you what kind of path it is — steep, rocky, with a chain fixed on the final pitch for anyone unsure of their footing. Wear real shoes.

Those ten minutes are a segment of course K-1 of the Kunisaki Peninsula Minemichi Long Trail — a full day’s walk that runs from Reisen-ji to Iwato-ji by way of the Ō-fudō cave, Old Sento-ji and Mt. Fudō. You are tasting the heart of it in ten minutes, and paying almost nothing for the privilege.

Then the view opens. The ridges of Kunisaki, and beyond them the Inland Sea: the island of Himeshima, and on a clear day the faint islands off Yamaguchi. Someone climbed to this ledge thirteen hundred years ago and stood where you are standing. From here, that is not hard to imagine.

Legend says the sea’s Dragon King, moved by Ninmon practicing in this very cave, offered him a thousand lanterns — and that is how Sento-ji, “temple of a thousand lights,” the first temple of Rokugo Manzan, got its name (the second dig). So this small ledge is also where the whole story starts.

Ten minutes of walking. But as this dig argued: any walk on which you feel something of this peninsula is today’s mine-iri. The Camino has its final-stretch pilgrims. Kunisaki, it turns out, will take you at ten minutes.

Practicalities: about 50 minutes by car from Oita Airport. For the pass road, parking, and the hour-long route up from Old Sento-ji, the Kunisaki City Tourism Association’s access map in tale 9 is the one to use.