This is one of my favorite flower hikes of Japan Alps however it is quite difficult and a lengthy hike.

Starting at Tsugaike and finishing at Sarukura, this route includes an overnight stay at Hakuba Sanso mountain hut, taking you through the peaks of Shiroumadake, Shakushidake, and Korenge, with a rejuvenating stop at Yarionsen. You can do this trail from Sarukura to Tsugaike. Between June and early July, I would recommend hiking up from Sarukura through Daisekkei (snow) trail.

Trail Details

• Starting Point: Tsugaike

• Ending Point: Sarukura

• Distance: Approximately 23 km

• Elevation Gain: 2,200 meters

• Duration: 2 days (overnight at Hakuba Sanso)

Route Highlights

1. Tsugaike to Hakuba Sanso

   • Starting Elevation: 1,500 m at Tsugaike

   • From Tsugaike, take the Tsugaike Ropeway to gain some initial elevation and shorten the ascent.

   • Begin hiking toward Hakuba Oike, a scenic alpine lake along the way, before continuing to Hakuba Sanso.

   • Arrive at Hakuba Sanso, where you’ll stay overnight. This hut provides a comfortable resting spot with incredible views of the surrounding mountains. Be sure to reserve a spot in advance, as it’s a popular hut for hikers on this circuit.

2. Hakuba Sanso to Shiroumadake (2,932 m)

   • Start early to tackle the ascent to Shiroumadake, the highest peak in the area. The climb is steep, with some rocky sections, but the views from the summit are among the best in the Northern Alps.

   • From the summit of Shiroumadake, you’ll enjoy a panoramic view that includes Japan’s Northern Alps and valleys below. It’s an ideal spot for a rest and photo opportunities.

3. Shiroumadake to Shakushidake (2,812 m)

   • Descend along the ridgeline from Shiroumadake toward Shakushidake. This section includes narrow trails and exposed ridges, requiring focus and careful footing.

   • The summit of Shakushidake provides sweeping views and a quieter vantage point, perfect for a break before continuing to Korenge.

4. Shakushidake to Korenge (2,766 m)

   • The final peak, Korenge, is reached via a ridgeline trail from Shakushidake. This section involves some light scrambling and rocky paths.

   • Korenge’s summit marks the last of the three peaks on this loop, offering a unique perspective on the surrounding mountain ranges and valleys.

5. Korenge to Yarionsen

   • Descend from Korenge to reach Yarionsen, a natural hot spring located high in the mountains. This onsen is popular among hikers for its serene setting and warm waters, which provide much-needed relaxation for tired muscles.

   • Soak in the outdoor onsen, taking in views of the rugged alpine landscape. Be sure to bring a towel and follow onsen etiquette.

6. Yarionsen to Sarukura (Ending Point)

   • After resting at Yarionsen, follow the trail down to Sarukura, where the hike concludes. The descent can be steep, so take it slow, especially in rocky or uneven areas.

Practical Information

• Best Time to Visit: July to October

• Reservations: Reserve a spot at Hakuba Sanso for the overnight stay. Yarionsen is open-air and does not require reservations.

• Gear: Sturdy hiking boots, trekking poles, and layers for sudden weather changes. Bring a small towel for Yarionsen and be prepared for mountain hut conditions.

• Onsen Etiquette: Be mindful to rinse off before entering the onsen and keep noise to a minimum to respect the tranquil environment.