Shirane Mountain — Nikko Shirane, or Shirane-san (日光白根山) — is the highest peak in both Nikko City and Tochigi Prefecture, and the highest mountain in the entire Kanto region at 2,578 metres. It is also one of the most demanding and rewarding hikes in the area. Set back deep in Nikko National Park northwest of Yumoto Onsen, the peak is not visible from the valley — it hides behind the range until you’ve earned it. The full loop is 11.5 km and takes two days, with a night at the mountain hut on the trail. The reward: a dramatic summit with panoramic views of Lake Chuzenji and Nantai Mountain, and a high-altitude landscape of volcanic ponds — Goshiki, Goshikinuma, and Midagaike — unlike anything else in Nikko.
👞 Trail at a Glance
| 📏 Distance | 11.5 km loop |
| ⏱ Duration | 2 days (overnight mountain hut required) |
| 💪 Difficulty | Strenuous — Class 3 (Grade V, two days) |
| 📍 Trailhead | Yumoto Camping area, Yumoto Onsen |
| ⛰ Summit | 2,578 m (highest in Kanto region) |
| 🔄 Trail Type | Loop (ascent via Yumoto, explore Goshiki/Midagaike) |
| 🌸 Season | June – October |
| 🚌 Bus Access | Tobu Bus to Yumoto Onsen (end of line) — Yumoto Onsen Pass or All Nikko Pass |
| 🌿 National Park | Yes — Nikko National Park |
| 🏕 Camping | Yumoto Campground (Day 1) + mountain hut on trail (Day 2) |
⚠️ Warning: The direct return trail from Goshiki to Yumoto is seriously overgrown and dangerous. Do not use it. See route notes below.
🏠 Base yourself at Earth Hostel Nikko Riverhouse — free morning shuttle to Nikko Station. Recharge at the hostel before and after the two-day expedition.
Why Climb Shirane?
Shirane is the mountain that serious hikers in Nikko save for last. At 2,578 metres it is the highest peak in the Kanto region — higher than Nantai, higher than Nyoho, higher than anything else visible from the valley. But what makes Shirane extraordinary is not just the elevation. It is the high-altitude volcanic landscape encountered near the summit: the five-colour ponds of Goshiki, the calm crater lake of Goshikinuma, and the shallow Midagaike tucked on the north ridge — a sequence of mountain lakes at altitude that feel genuinely remote and wild. Very few day-trippers reach this section of the park.
This is a two-day hike. Not because the distance is extreme, but because the approach to the mountain requires an overnight at Yumoto Campground to get an early start, and the full loop including Goshiki exploration takes the better part of a day once on the mountain. The overnight hut on the trail (identifiable by its red roof) allows hikers to spread the effort across two days and explore Goshiki at first light before descending.
Getting to the Shirane Trailhead
The trailhead begins at the Yumoto Camping area, several hundred metres north of the main Yumoto Onsen bus terminal. There is no separate trailhead bus stop — you walk from the bus terminal through the onsen village and north to the camping area, where the trail entrance begins in the forest.
By bus from Nikko: Take the Tobu Bus from Tobu Nikko or JR Nikko station to Yumoto Onsen (湯元温泉) — the last stop on the route. Journey time is approximately 60–75 minutes. You will need the Yumoto Onsen Pass or the All Nikko Pass to cover this distance. Buses run regularly from spring through autumn but check the timetable — evening departures back to Nikko are limited and easy to miss.
From Earth Hostel: The hostel’s free morning shuttle gets guests to Nikko Station for the first bus toward Yumoto. For a two-day Shirane expedition, most hikers take the midday bus to Yumoto, set up camp at the Yumoto Campground, and begin the trail the following morning at dawn.
Two-Day Route Overview
Day 1 — Travel to Yumoto and camp: Take the bus to Yumoto Onsen and settle into the Yumoto Campground — a basic but functional site with a BBQ area. The campground sits at approximately 1,480 m above sea level. Spend the afternoon exploring Yumoto Onsen and Lake Yu (Yunoko) nearby. Go to bed early.
Day 2 — Trailhead to summit and back: Start before dawn or at first light. The main trailhead is several hundred metres north of the campground, entering the forest. Within the first two hours the forest opens and Shirane’s peak comes into view above the ridgeline — a motivating and memorable sight.
Forest section (0–3 km, ~2 hours): A steady climb through dense mountain forest with a well-marked trail. The gradient is consistent. This is the longest section in distance but manageable at a steady pace.
Ridgeline and mountain hut (~3–5 km): The trail breaks onto the ridgeline with views across to Lake Chuzenji and Nantai Mountain to the southeast. The overnight hut — a small building with a red roof visible from below — sits directly on the trail here. This is the correct hut for sleeping; there is a second emergency evacuation hut on the ridge which is not suitable for overnight stays and should not be used for camping.
Summit (2,578 m): The peak of Shirane is set deep in the range and appears gradually. The summit is spacious with room for a group, and the views in clear conditions are exceptional: Lake Chuzenji directly southeast with Nantai Mountain rising behind it, the wider Nikko National Park range spreading in all directions, and on the clearest days, the volcanic landscape continuing toward Gunma Prefecture to the northwest.
Goshiki, Goshikinuma, and Midagaike (summit exploration): From the summit, the trail continues to the Goshiki pond system. Goshiki (?色) means “five colours” — the name comes from the remarkable range of hues the ponds display depending on light, season, and angle. Goshikinuma is the main crater lake; Midagaike is a smaller, shallower pond on the north ridge, deep enough for a quick dip. These are the highlights of the hike for most people who reach them.
⚠️ Critical Route Warning: Do NOT Return via Goshiki Direct to Yumoto
There is a direct trail from Goshiki back down to the Yumoto Onsen area. Do not use it. The trail is severely overgrown, runs along a deep gully with sheer sides in many sections, and you cannot see your footing as you walk. It is genuinely dangerous and we cannot recommend it under any circumstances. Return the way you came (back via the overnight hut and forest section), or descend north via an alternate ridgeline if conditions allow. Ask at the hostel for the current recommended return route before departing.
Trail Photos
Best Season
| Season | Conditions | Notes |
|---|---|---|
| Before June | Deep snow at altitude; not recommended | Trail and campground conditions unreliable. Check before attempting. |
| June – July | Trail opens; cool, clear, some snowmelt possible | Excellent season with fewer hikers. July thunderstorms possible — start very early. |
| August | Warmest conditions; Goshiki ponds at their most colourful | Peak season. Afternoon thunderstorms common. Summit by noon. |
| September – October | Clear autumn skies; excellent visibility | Best season for summit views. Temperatures drop fast after sunset — warm layers essential. |
| After October | Buses to Yumoto reduced; conditions deteriorate | Check bus schedules carefully before planning a late-season trip. |
What to Bring
• Full hiking boots with ankle support (essential for two-day mountain hike)
• Trekking poles (strongly recommended for the descent)
• Sleeping bag and camp mat (the mountain hut is basic — bring your own sleeping kit)
• Water: minimum 2.5 litres per person per day
• Two days of food — no supplies available on the trail
• Full rain gear including pack cover
• Warm layers: summit can be 15°C cooler than Yumoto Onsen
• Headlamp with spare batteries (for early morning start and hut navigation)
• Tent or confirmation the hut has space (first-come basis)
• Yumoto Onsen Pass or All Nikko Pass
• Download offline maps — signal is non-existent on the mountain
Frequently Asked Questions
Is Shirane Mountain suitable for beginners?
No — Shirane is a Grade V, Class 3, two-day mountain hike and is suitable only for experienced hikers comfortable with sustained mountain terrain, overnight camping, and navigation. If you haven’t done Nantai or a similar full-day hike first, build up to Shirane.
How do I get to Shirane Mountain from Nikko?
Take the Tobu Bus all the way to Yumoto Onsen — the last stop on the route, approximately 60–75 minutes from Tobu Nikko or JR Nikko station. Buy the Yumoto Onsen Pass or All Nikko Pass before departing. Walk north from the bus terminal to the Yumoto Campground to reach the trailhead.
Is the overnight hut on Shirane booked in advance?
The mountain hut is a simple first-come shelter and does not take advance reservations. If you’re concerned about space, bring a lightweight tent as backup. The Yumoto Campground for Day 1 is also first-come.
What is Goshiki?
Goshiki (五色, ‘five colours’) refers to a cluster of volcanic ponds near the Shirane summit that display an extraordinary range of colours depending on light and season — deep blue, jade green, grey, and brown. Goshikinuma is the main crater lake; Midagaike is a smaller pond to the north. These are among the most remote and beautiful natural features in Nikko National Park.
Can I do Shirane in one day?
Technically possible for very fit hikers, but not recommended. The trail is long, the summit is high, and exploring Goshiki properly takes time. Starting from Yumoto after an early bus from Nikko also means losing 1–2 hours at the beginning of the day. The two-day approach is genuinely better.
What is the dangerous return trail from Goshiki?
There is a trail that descends directly from Goshiki back to the Yumoto Onsen area. This trail is severely overgrown, follows a deep gully with sheer sides, and provides very poor footing. We have photographed it extensively and our strong recommendation is: do not use it. Return via the ascent route or another marked trail.
Plan Your Shirane Expedition from Earth Hostel
Earth Hostel Nikko Riverhouse is the natural base for a Shirane expedition. Stay the night before, use our free morning shuttle to Nikko Station to catch the first bus to Yumoto, and we’ll be here when you return. We know the trail personally and can give you the current conditions, bus times, and an honest assessment of whether the weather is right for the summit.
Shirane pairs well with Nyoho Mountain — both are Grade V two-day hikes that attract serious walkers. If you’re planning both, stay at Earth Hostel and we’ll help you sequence the days. See all hiking trails in Nikko ›
Last updated: April 2026. Yumoto Onsen bus schedules and campground availability change seasonally — verify before departing. The Goshiki direct descent route remains dangerous and is not recommended.
