Mt. Arakawa (荒川岳) is a mountain massif in the Southern Japanese Alps. Its highest peak, Mt. Warusawa (悪沢岳/東岳, 3,141m), is the 6th tallest mountain in Japan and one of Japan’s 100 Famous Mountains. Located between Mt. Shiomi and Mt. Akaishi, it offers a challenging but rewarding alpine experience.
The trailhead is at Sawashima Lodge, accessible via Hatanagi Parking by shuttle bus. Access to Hatanagi is available from Tokyo (Mainichi Alpen-go night bus) or Shizuoka Station (South Alps Tozan Line / Access Pack). The same trailhead is used for Mt. Hijiri and Mt. Akaishi.
Access to the Trailhead
Map
1. Going: Takebashi (Tokyo) → Sawashima Lodge
Step 1: From Takebashi Station or Hachioji Station in Tokyo, take the Mainichi Alpen-go night bus bound for Hatanagi Dam/Ikawa, and get off at Hatanagi Parking. (Reservation required)
Mainichi Alpen-go Night Bus
| Takebashi Sta. Dep. | Hachioji Sta. Dep. | Hatanagi Parking Arr. |
|---|---|---|
| 23:00 | 0:15 | 5:50 |
Step 2: At Hatanagi Parking, transfer to the Tokushu Tokai Forest shuttle bus to Sawashima Lodge. (Reservation required. Accommodation at a partner mountain hut is required to use this bus; tent-only stays are not eligible.)
Sawashima Lodge Shuttle Bus
| Hatanagi Parking | Sawashima Lodge |
|---|---|
| 7:30 | 8:30 |
Reference: Mainichi Alpen-go / Sawashima Lodge Shuttle
2. Going: Shizuoka Sta. → Sawashima Lodge
Step 1: From Shizuoka Station, take either the Shizutetsu Bus “South Alps Tozan Line” or the Chiyoda Taxi “South Alps Access Pack” to Hatanagi Parking. (Both require reservation)
South Alps Tozan Line (Shizutetsu Bus)
| Shizuoka Sta. Dep. | Hatanagi Parking Arr. |
|---|---|
| 10:00 | 13:10 |
South Alps Access Pack (Chiyoda Taxi)
| Shizuoka Sta. Dep. | Hatanagi Parking Arr. |
|---|---|
| 11:00 | 14:15 |
Step 2: At Hatanagi Parking, transfer to the Tokushu Tokai Forest shuttle bus to Sawashima Lodge.
Sawashima Lodge Shuttle Bus
| Hatanagi Parking Dep. | Sawashima Lodge Arr. |
|---|---|
| 14:30 | 15:30 |
Reference: South Alps Tozan Line / South Alps Access Pack / Sawashima Lodge Shuttle
3. Return: Sawashima Lodge → Shinjuku (Tokyo)
Step 1: From Sawashima Lodge, take the Tokushu Tokai Forest shuttle bus to Hatanagi Parking. (Reservation required. Accommodation at a partner mountain hut is required.)
Sawashima Lodge Shuttle Bus
| Sawashima Lodge Dep. | Hatanagi Parking Arr. |
|---|---|
| 13:00 | 14:00 |
| Sawashima Lodge Dep. | Hatanagi Parking Arr. |
|---|---|
| 10:30 | 11:30 |
Step 2: From Hatanagi Parking, take the Mainichi Alpen-go night bus to Shinjuku Station.
Mainichi Alpen-go Night Bus (Return)
| Hatanagi Parking Dep. | Shinjuku Sta. Arr. |
|---|---|
| 14:10 | 20:30 ~ 21:30 |
Reference: Sawashima Lodge Shuttle / Mainichi Alpen-go
4. Return: Sawashima Lodge → Shizuoka Sta.
Step 1: From Sawashima Lodge, take the Tokushu Tokai Forest shuttle bus to Hatanagi Parking.
Sawashima Lodge Shuttle Bus
| Sawashima Lodge Dep. | Hatanagi Parking Arr. |
|---|---|
| 13:00 | 14:00 |
| 14:00 | 15:00 |
Step 2: From Hatanagi Parking, take the Shizutetsu Bus “South Alps Tozan Line” or the “South Alps Access Pack” back to Shizuoka Station.
South Alps Tozan Line (Return)
| Hatanagi Parking Arr. | Shizuoka Sta. Dep. |
|---|---|
| 14:25 | 17:50 |
South Alps Access Pack (Return)
| Shizuoka Sta. Dep. | Hatanagi Parking Arr. |
|---|---|
| 15:05 | 18:55 |
Reference: Sawashima Lodge Shuttle / South Alps Tozan Line / South Alps Access Pack


