Okuhotaka 3190m is Japans 3rd highest peak and a difficult overnight hike from Kamikochi. The route described here passes by Maehodaka...

Tengudake 2640m from Honzawa Onsen is a relatively easy and stunning winter hike. The ridge to the peak has a bit of exposure and is steep, but overall this is a good hike to practice your crampons and axe skills. Honzawa is also famous for being Japan's highest outdoor onsen, and especially in winter, it's amazing to have a bath surrounded by snow. The hut is open year-round. ⏲︎ Time: 9-10h ✎ Kanji: 天狗岳 ⚲   Location: Nagano ↔ Distance: 17km ✮ Difficulty: Intermediate ᨒ

Kasagadake 2897m is a strenuous and scenic hike in Gifu. It has amazing views of the Hida Ridge and is a less busy choice compared to some of the other big peaks in the area. It's also not technical or exposed. The trail starts from Shinhotaka Onsen and is easy to access by public transportation. It's also a good starting point for a longer multi day hike along the ridge to Yarigatake and then to Kamikochi. ⏲︎ Time: 13h ✎ Kanji: 笠ヶ岳 ⚲  Location: Nagano ↔ Distance: 20km