Japan’s Hardest Single Peak: Mt. Tsurugi with My Son

Mt. Tsurugi rising above the Tateyama Range in the Japanese Northern Alps
Mt. Tsurugi, the signature peak of the Tateyama Range

Mt. Tsurugi (Tsurugidake, 2,999m) is widely considered the hardest single peak in Japan. It stands in the Tateyama Range of the Northern Alps, and it has a nickname that tells you what to expect: the “Hall of Rock and Snow.”

For a long time it was thought to be unclimbable. When the Imperial Japanese Army’s survey teams were completing the national map in the Meiji era, Mt. Tsurugi was the last gap left in the triangulation network, and the first recorded ascent did not happen until 1907. That story was later made into a film, The Summit: A Chronicle of Stones (2009).

Today the mountain has a good hut system, and the 13 worst sections of rock are fitted with chains. People still die here every year.

I climbed it with my son and two teammates, four of us in all, over three days and two nights in excellent weather, and we continued over the main Tateyama peaks to close the route as a loop. What follows is what the climb is actually like: how to plan it, which hut to use, what the 13 chain sections involve, and how I judged the terrain with a child along.

What makes Mt. Tsurugi hard

The difficulty is in the terrain, not the effort.

From the hut to the summit is 1.8km one way with about 500m of gain, and it still takes over three hours, because almost all of it is rock. The 13 worst places are fitted with chains and iron bars driven into the face. Several are close to vertical, and a few require traversing rock above a drop.

Rock faces on the approach to Mt. Tsurugi in Toyama, Japan
Mt. Tsurugi is known as a hall of rock, and most of the climb is spent on it

A useful reference point for visitors: this is closer to a via ferrata without a clip-in system than to a hiking trail. It does not take much fitness. It does not leave much margin either.

There are two routes up:

  • The Bessan Ridge route — what most people use, including us. It starts from Murodo, the high point of the Tateyama Kurobe Alpine Route.
  • The Hayatsuki Ridge route — from Babajima, and considerably more demanding physically.

Getting to Mt. Tsurugi

Access is the same as for the Tateyama Kurobe Alpine Route, the well-known sightseeing crossing. You can enter from Toyama on the west side or Ogizawa on the east, and either way you start walking from Murodo (2,450m), the highest point on the route.

From Toyama Station:

  • Toyama Chiho Railway to Tateyama Station — about 1 hour 10 minutes
  • Tateyama Cable Car to Bijodaira — 7 minutes
  • Tateyama Highland Bus to Murodo — about 1 hour

With waiting and transfers, allow 2 to 3 hours. Toyama is reached from Tokyo by Hokuriku Shinkansen, so the connection is straightforward for visitors.

Toyama Chiho Railway train on the way to Tateyama Station
Toyama Chiho Railway, Toyama Station to Tateyama Station
Tateyama Cable Car climbing from Tateyama Station to Bijodaira
Tateyama Cable Car, Tateyama Station to Bijodaira

Planning it as a three-day loop

Three days and two nights works well, and I would connect the main Tateyama peaks — Oyama, Onanji and Fujinooritate — into a loop rather than walking back the way you came. The third day costs an extra three to four hours and gives you the best views of the trip, and you come away with two of Japan’s 100 Famous Mountains (Hyakumeizan) instead of one.

Route map of the Mt. Tsurugi and Tateyama three-day loop
The Mt. Tsurugi and Tateyama loop route

One difference worth explaining for anyone used to permit systems elsewhere: Japan has no advance lottery for entering the mountains. What you do is submit a climbing plan (tozan-todoke) with your personal details and your intended route. Huts are also common here, so outside weekends you are not competing for a bed. Privately run huts are not cheap, but you get the facilities and the convenience.

Kenzanso, the closest hut to the summit

Two huts inside the cirque suit a Tsurugi climb: Kenzanso, which is nearer the summit, and Tsurugisawa Hut on the far side of the basin. They are about 20 minutes apart.

Kenzanso mountain hut below Mt. Tsurugi
Kenzanso, the closest hut to the summit of Mt. Tsurugi
The cirque below Mt. Tsurugi seen from Kenzanso
Looking from Kenzanso toward Bessan and Tsurugisawa Hut, across the full cirque

We used Kenzanso. It is well equipped, clean and comfortable, and the staff were warm. Alongside the drying room, shop and dining room that any Japanese hut has, there is beer, soft drinks and coffee. The unusual part is the shower room, with hot water in the afternoon (no soap or other products allowed) — not something you often find at this altitude. The four of us had a room to ourselves, with a power outlet.

Private four-person room inside Kenzanso hut
A room to ourselves for the four of us
Shower room at Kenzanso hut below Mt. Tsurugi
The shower room at Kenzanso
Half-board dinner served at Kenzanso hut
Dinner, served as part of the half-board stay

Half-board is ¥14,000 per person. You can book online and pay by credit card. Kenzanso also rents climbing helmets.

Day 1 — Murodo to Kenzanso

The first day starts with a walk across the Murodo plateau, and it is a walk rather than a climb. Murodo is the main attraction of the whole Alpine Route and the high point of the standard sightseeing trip. Japan’s highest hot-spring inn is up here, and the famous snow corridor in April and May is in this same area.

Murodo plateau, starting point for the climb to Mt. Tsurugi
Murodo, the start of the first day

The path is well built, and it passes Mikurigaike, Jigokudani and Chinoike, along with the inns, huts and campground up here. Jigokudani means Hell Valley, and you smell the sulfur well before you reach it.

Mikurigaike pond on the Murodo plateau
Mikurigaike
Steam rising from Jigokudani on the way to Mt. Tsurugi
Jigokudani, with a thick, sharp smell of sulfur

Past the Raichozawa campground you cross a small stream and finally start climbing, up to Tsurugi-gozen Goya, a hut on the Bessan ridge. That took us about three hours from Murodo, and we stopped there for lunch around midday.

Tsurugi-gozen Goya hut on the Bessan ridge
Tsurugi-gozen Goya, on the Bessan ridge

The ridge running south from Tsurugi turns east at Tsurugi-gozen Goya to join the Bessan ridge, and together the two enclose a cirque that opens to the northeast. Both huts sit inside it.

The descent into that basin should have been the scenic part of the day. Instead we got a thunderstorm. Lightning was striking not far ahead of us, and we stopped caring about the view or about the trail turning into a waterfall and a string of pools. We put our heads down and ran for Kenzanso.

Day 2 — the 13 chain sections of Mt. Tsurugi

On paper the second day looks easy: out and back from Kenzanso, 1.8km each way, 500m of gain. It is the most serious day of the trip. Most people take about six hours round trip; we took seven, plus another hour spent eating and messing around on the summit.

We left straight after breakfast to stay ahead of the afternoon storms. Because we were based at Kenzanso, we could do the day with light packs.

Map of the 13 chain sections on the route up Mt. Tsurugi
The 13 chain sections on the way to Mt. Tsurugi

The route crosses two lesser peaks — Ippuku-tsurugi and Mae-tsurugi — before the summit itself.

Trail behind Kenzanso leading toward Mt. Tsurugi
Starting up the path behind Kenzanso
  • Chains 1 and 2, below Ippuku-tsurugi: no real difficulty.
  • Once over Ippuku-tsurugi, a large and intimidating peak appears ahead. Do not be fooled — that is not Tsurugi, it is Mae-tsurugi.
  • Chains 3 and 4, just below the top of Mae-tsurugi: harder than the first two, but still not what I would call difficult.
Ippuku-tsurugi, the first peak on the route to Mt. Tsurugi
Ippuku-tsurugi, the first high point above the hut
Mae-tsurugi seen from Ippuku-tsurugi on the Mt. Tsurugi route
The impressive peak that appears after Ippuku-tsurugi is not Tsurugi — it is Mae-tsurugi
Chain section below the summit of Mae-tsurugi
Chains 3 and 4, just below the top of Mae-tsurugi

The real climbing starts above Mae-tsurugi. Between there and the summit the dangerous ground is split by direction: chains 5 to 9 are on the way up, chains 10 to 13 are on the way down, and chains 1 to 4 are walked in both directions.

First clear view of Mt. Tsurugi from Mae-tsurugi
Over Mae-tsurugi, another peak appears — this one is Tsurugi

Chain 5 is the traverse you can see from a long way off. You cross a short metal bridge first — not hard, but worth care in wind — and then move out onto the face. It looks alarming. In practice the footholds are obvious, and with a firm grip on the chain and careful feet it is not that hard. This is where I clipped my son onto the chain.

Metal bridge before chain section 5 on Mt. Tsurugi
The short metal bridge before the chain
Climbers traversing chain section 5 on Mt. Tsurugi
Watching other climbers on chain 5 was enough to bring on the vertigo
Traversing chain section 5 on Mt. Tsurugi with a via ferrata set
Chain 5 in practice: the footholds are clearer and better than they look from a distance

Chains 7 and 9 are close to vertical. Along with the chain there are iron bars set into the rock as steps, and with hands on the chain and feet on the bars, going up is not a problem.

Iron bars and chain on a vertical face of Mt. Tsurugi
On the vertical chains, iron bars are set into the rock wherever there are no natural holds

Chain 10, the first one on the descent, was the one that scared me. The trail simply ends at a vertical face. You cannot see the footholds at first — they are out on the wall itself — so you take the chain, hang off it, and feel for them with your feet, all of it done on vertical rock. That is the stretch where I was glad we had brought gear to clip in with. Immediately after it comes an aluminum ladder going straight down.

Descending chain section 10 on Mt. Tsurugi
Chain 10: small footholds, and you are hanging off the face
Exposed traverse on chain section 10 of Mt. Tsurugi
The traverse on chain 10 is exposed, but at least it is short
Aluminum ladder on the descent from Mt. Tsurugi
Straight after chain 10 comes this aluminum ladder

It is worth saying that the danger is not confined to the chains. Between Mae-tsurugi and the summit the trail spends much of its time on knife-edge ridge and along the edge of drops. You do not get to switch off.

Knife-edge ridge between Mae-tsurugi and Mt. Tsurugi
It is not only the chains — the ground between Mae-tsurugi and the summit is rarely far from a drop

On gear: a climbing helmet is essential, and Kenzanso rents them. A via ferrata set is not required, but having climbed the route, there are one or two traverses where it earns its place, and I would bring one for the extra margin.

The summit of Mt. Tsurugi, at 2,999m, is a field of broken rock, much of it large, with a shrine and that famous triangulation point on it. The peak stands alone, so the view is unobstructed in every direction.

Shrine on the summit of Mt. Tsurugi
The shrine on the summit of Mt. Tsurugi
Triangulation point on the summit of Mt. Tsurugi
The triangulation point on Mt. Tsurugi
On the summit of Mt. Tsurugi after the climb
On the summit

We had excellent weather for it, and we were back at the hut in time for a relaxed afternoon tea.

Afternoon tea at Kenzanso after climbing Mt. Tsurugi
Back at the hut by two or three in the afternoon, with time for a relaxed afternoon tea

Day 3 — the Tateyama ridge back to Murodo

On the third day you can retrace your steps to Murodo, or spend an extra three to four hours going back along the main Tateyama ridge to close the loop. We took the ridge.

Early morning walk from Kenzanso toward Tsurugisawa Hut
Leaving just after six on the third morning, heading first for Tsurugisawa Hut

From Kenzanso it is 20 minutes to Tsurugisawa Hut, then a climb up the side of the cirque to the Bessan ridge — about an hour and a half, and the hardest part of the day. Once you are on the ridge it is a different landscape altogether.

Climbing out of the cirque toward the Bessan ridge
The climb from Tsurugisawa Hut to the top of the cirque is the hardest part of the day
The main Tateyama ridge on the third day of the loop
The day is spent crossing this ridge over the main Tateyama peaks

The views from this ridge were the best of the three days. On one side you look out to Toyama Bay on the Sea of Japan and down over the whole of Murodo. On the other is the Ushiro-Tateyama Range running parallel to you, with the Kurobe Gorge and the Kurobe Dam between the two ranges.

Toyama Bay seen from the Tateyama ridge
Toyama Bay and the city of Toyama from the ridge
Murodo plateau seen from the Tateyama ridge
Looking down over Murodo from the ridge
The Ushiro-Tateyama Range seen across the valley from Tateyama
We are on the Tateyama Range; the parallel peaks opposite are the Ushiro-Tateyama Range
Kurobe Gorge and Kurobe Dam seen from the Tateyama ridge
Between the two ranges lie the Kurobe Gorge and the Kurobe Dam

From there the ridge runs on without much climbing, over Bessan, Masago, Fujinooritate, Onanji and Oyama, then drops steeply off Oyama back to Murodo. After the previous day this is easy ground, and the views are hard to beat. Around eight hours in total.

How hard is it, really

Star ratings and comparisons to other mountains are not much use here. It is more useful to describe the conditions. Between the top of Mae-tsurugi and the summit, the route is almost continuously on rock, on knife-edge ridge, or along the edge of a drop, and a slip has nothing to stop it. What it asks for is tolerance of exposure, the ability to move steadily using hands and feet together, and enough composure to feel for footholds you cannot see, on vertical rock. It does not ask for endurance. Someone of average fitness who stays calm will get through it. Someone very fit who is afraid of heights will have a bad day.

My son has already done a fair number of scrambling routes back in Taiwan. He still says Mt. Tsurugi is the hardest mountain he has climbed.

Scrambling terrain on a mountain route in Taiwan
Plenty of routes in Taiwan involve similar scrambling

One last judgement call: if it were raining and the choice were mine, I would turn back rather than take on technical ground. Every safety fixture on this mountain assumes dry rock.

Cloud and weather closing in on Mt. Tsurugi
In rain, given the choice, I would turn back rather than take on technical ground