Mt. Kokushi (国師ヶ岳, 2592m) is a peak on the main ridge of the Okuchichibu Mountains, straddling Yamanashi and Nagano prefectures. Together with the adjacent Mt. Kitaoku-Senjo (2601m), it offers sweeping views of the Southern Alps and Mt. Fuji. The round trip from Odarumi Pass follows a well-maintained boardwalk trail and is accessible even for beginners.
The trailhead at Odarumi Pass is reached by a reservation-required bus service operated by Eiwa Kotsu from JR Enzan Station. A transfer is made at Yanagidaira along the way.
Access to the Trailhead
Map
1. Going: Enzan Sta. → Odarumi Pass
From JR Enzan Station North Exit, take the Eiwa Kotsu reservation-required bus “Yakeyama Pass / Odarumi Pass (Kinpu-san) Line.” There is a transfer at Yanagidaira bus stop along the way.
Operating period: May 31 – October 26, 2025 (weekends/holidays only). Travel time: about 1 hr 25 min. Fare: 3000 yen.
Advance reservation is required (online or by phone). Details: Eiwa Kotsu — Odarumi Pass Tour
Bus Timetable: Enzan Sta. → Odarumi Pass
| Enzan Sta. North Exit | Yanagidaira (arr.) | Yanagidaira (dep.) | Odarumi Pass |
|---|---|---|---|
| 07:30 | 08:15 | — | 08:55 |
| 09:00 | 09:45 | — | 10:25 |
2. Return: Odarumi Pass → Enzan Sta.
From Odarumi Pass bus stop, take the Eiwa Kotsu reservation-required bus back to Enzan Station, with a transfer at Yanagidaira.
Operating period: May 31 – October 26, 2025 (weekends/holidays only). Travel time: about 1 hr 25 min. Fare: 3000 yen.
Advance reservation is required. Details: Eiwa Kotsu — Odarumi Pass Tour
Bus Timetable: Odarumi Pass → Enzan Sta.
| Odarumi Pass | Yanagidaira (arr.) | Yanagidaira (dep.) | Enzan Sta. North Exit |
|---|---|---|---|
| 15:00 | 15:30 | — | 16:25 |
| 16:15 | 16:45 | — | 17:40 |
