Deep in Yamagata Prefecture, three mountains have been drawing pilgrims in white robes for over a thousand years. Dewa Sanzan — Mount Haguro, Mount Gassan, and Mount Yudono — is the spiritual home of Shugendo, a mountain-ascetic practice that blends Shinto nature worship with esoteric Buddhism. Climbing all three in sequence is said to symbolize death and rebirth: the present life at Haguro, the past (and the afterlife) at Gassan, and a new birth at Yudono. You don’t need to be religious to find the experience genuinely moving — cedar-lined stone staircases, a National Treasure pagoda, and a shrine so sacred that photography is forbidden inside it. Here’s how to actually plan the trip.
What Is Dewa Sanzan? The Three Mountains of Rebirth
“Dewa Sanzan” simply means “the three mountains of Dewa,” the old name for this part of Tohoku. For over a millennium, yamabushi (mountain ascetics) have trained here through fasting, waterfall meditation, and long treks between the summits. Today you’ll see yamabushi in white robes and conch-shell horns leading groups, but you’ll also see plenty of regular hikers and tourists doing some or all of the pilgrimage independently — no special training or guide is required for Haguro or Yudono, though Gassan is a genuine hike.
Mount Haguro — The Easiest and Most Rewarding Climb
Haguro (414m) is the most accessible of the three and the only one open year-round. From the vermilion Zuishinmon gate, a stone staircase of 2,446 steps winds uphill through old-growth cedar forest to the Gosaiden shrine hall at the summit, which enshrines all three Dewa Sanzan deities together (useful if you can’t make it to Gassan or Yudono). About 15–20 minutes up from the gate you’ll pass the Five-Story Pagoda (Goju-to), a weathered wooden pagoda dating to the 14th century and designated a National Treasure — it’s one of Tohoku’s oldest buildings and worth the detour alone.
The climb takes most people 60–90 minutes one way at a relaxed pace. There’s no entrance fee to walk the steps or visit the pagoda. Wear proper shoes: the stone steps are uneven, worn smooth in places, and genuinely slippery when wet or mossy — flip-flops or smooth-soled sneakers are a common and avoidable injury here. If you don’t want to climb, a toll road lets drivers reach the summit parking lot directly for a small fee.
Mount Gassan — Summer-Only Summit and Spring Skiing
At 1,984m, Gassan is the tallest and most demanding of the three, and it’s only open for hiking roughly from late June through early October — snow blocks the trail and access road the rest of the year. Most hikers start from the 8th Station (Hachigome) parking lot, reachable by car or seasonal bus, then take the Gassan summer lift partway up (a one-way or round-trip ticket runs roughly ¥1,000–1,800) before hiking the remaining 2–3 hours to the summit shrine, Gassan Jinja. Budget a full day; bring water, layers, and real hiking shoes, since the upper trail crosses exposed rock and lingering snowfields even in midsummer.
Ironically, Gassan is also famous as one of Japan’s few places to ski into early summer — the Gassan Snow Park operates on a massive spring snowfield from roughly April through early July, a bucket-list stop for ski and snowboard enthusiasts chasing the last powder of the season.
Mount Yudono — Japan’s Most Secret Shrine
Yudono is the innermost and most sacred of the three, and the one with the strictest rules: there is no building at all. The shrine itself is a large, naturally warm, reddish-brown rock with hot spring water flowing continuously over it, and worshippers walk across it barefoot as an act of purification. Photography of the sacred rock is strictly prohibited, and tradition holds that what you experience there should not be described afterward — “do not speak of it, do not ask of it” is the old rule.
Cars can’t drive all the way to the shrine; from the parking area you take a short mandatory shuttle bus (a few hundred yen round trip) to the shrine precinct, pay a purification fee of around ¥500, remove your shoes and socks, and receive a paper figure (hitogata) to rub against your body before releasing it into the stream. The access road is open only from around mid-May to early November — it’s the first of the three to close for winter and the last to reopen.
Getting There and Getting Around
The gateway city is Tsuruoka in Yamagata’s Shonai region. From Tokyo, the fastest option is flying into Shonai Airport (around an hour from Haneda), then taking a taxi or rental car onward. By train, take the Joetsu Shinkansen to Niigata and transfer to the limited express Inaho to Tsuruoka — roughly 3.5–4 hours total. Overnight highway buses from Shinjuku also run to Tsuruoka for less but take 7–8 hours.
From Tsuruoka Station, local buses run to Haguro’s Zuishinmon gate in about 35–40 minutes. The catch is connecting the three mountains: there’s no convenient public transit linking Haguro, Gassan, and Yudono directly, and a seasonal tourist shuttle only runs on a limited schedule in summer. For a trip covering all three, renting a car is by far the most practical option — see our guide to renting a campervan or RV in Japan if you’d rather combine the pilgrimage with a wider Tohoku road trip, sleeping at michi-no-eki rest stops along the way.
Where to Stay: Shukubo Pilgrim Lodges
The village of Toge, at Haguro’s base, has run shukubo (temple pilgrim lodges) for centuries — some families have hosted pilgrims for over 30 generations. A night typically costs ¥10,000–15,000 per person with dinner and breakfast, and the meal is the highlight: multi-course shojin ryori using foraged mountain vegetables, local mushrooms, and Haguro-grown konnyaku, entirely vegetarian in keeping with Buddhist practice. Booking ahead is essential, especially around the Hassaku Matsuri in August or the Shorei-sai fire festival on New Year’s Eve, when yamabushi perform dramatic fire rituals at Haguro — one of Japan’s most striking winter festivals if you can time a visit for it. If you’re in the region in cold weather afterward, warming up with a bowl of botan nabe wild boar hot pot is a very Tohoku way to end the day.
Best Time to Go and Common Mistakes
Late June through September is the only window to do all three mountains in one trip, since Gassan and Yudono are snowed shut otherwise. Haguro alone is doable any season, including a snowy, atmospheric New Year’s visit. The biggest mistake travelers make is trying to cram all three summits into a single day — Haguro’s steps, Gassan’s multi-hour hike, and Yudono’s shrine ritual plus the drive time between them realistically need two full days. Other easy-to-avoid errors: no cash on hand (rural shrines and shukubo often don’t take cards), wrong footwear for Haguro’s slick stone steps, and pulling out a camera at Yudono’s shrine — staff will stop you, and it’s considered a serious breach of the site’s rules. If you’re building a longer Tohoku itinerary around Dewa Sanzan, Akita’s Namahage demon folklore on the Oga Peninsula makes a natural extension a couple of hours further north.