Mt. Akaishi

The operating schedules of the Mainichi Alpen-go and shuttle buses vary by fiscal year. Please check the official websites of each operator for the latest operating dates and reservation procedures.

Mt. Akaishi (赤石岳) is a 3,121m peak located in the southern Southern Alps, straddling Nagano and Shizuoka Prefectures.
It is the fourth-highest peak in the Southern Alps after Mt. Kita, Mt. Ainodake, and Mt. Warusawa, and is selected as one of the 100 Famous Japanese Mountains and the New 100 Famous Japanese Mountains.

For Mt. Akaishi, the common route is a loop including Mt. Arakawa from the Sawarajima trailhead.
Although it is a hard-to-access mountain area in the southern Southern Alps, during the season access is possible using the Mainichi Alpen-go (overnight bus), the Southern Alps Hiking Line (Shizutetsu Bus), and the Tokushu Tokai Forest shuttle bus.

Mt. Akaishi 2026 Season Access Notes

There are multiple main access options for Mt. Akaishi, each with different operating periods and reservation systems. The timetables in this article are based on the 2025 season, so please confirm 2026 operating information with each operator’s official site.

Tokai Forest shuttle bus (Sawarajima Lodge ⇔ Hatanagi Dai-ichi Dam): For lodge guests only, seasonal operation (typically July – early November), reservation required. Official
Shizutetsu Bus Southern Alps Hiking Line (Shizuoka Station ⇔ Hatanagi): Typically seasonal operation mid-July – mid-August. Official
Chiyoda Taxi Access Pack: 8-seat capacity, reservation required.
Mainichi Alpen-go (Takebashi, Hachioji ⇔ Hatanagi): Overnight tour bus, operating on specific days, course numbers updated annually. Official
Ina Bus Southern Alps Hiking Bus Torikura Line (Nagano side): Operating July 18 – August 30, 2026 (official confirmed). Ina Bus

For access from the Torikura trailhead, refer to the Mt. Shiomi page.

*Timetable last checked: May 22, 2026

Map

How to access the trailheads

[Going] Takebashi Station (Tokyo) → Sawarajima
[Going] Shizuoka Station → Sawarajima
[Return] Sawarajima → Shinjuku Station
[Return] Sawarajima → Shizuoka Station

Hiking Course Details — Mt. Akaishi

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Map & Recommended Route — Mt. Akaishi

1. [Going] Takebashi Station (Tokyo) → Sawarajima Lodge

Step 1. Takebashi Station → Hatanagi Summer Temporary Parking
From Tokyo’s Takebashi Station or Hachioji Station, board the Mainichi Alpen-go “Hatanagi Dam / Ikawa direction” and get off at Hatanagi Summer Temporary Parking. (Reservation required)
Fare: ¥15,500–18,500 (Takebashi Station → Sawarajima Lodge)
Reference: Operating period: specific days typically mid-July – mid-October (varies by year)
Fare: from ¥15,500
Travel time: about 7 hours (overnight)

Mainichi Alpen-go
Takebashi Station Dep.	Hachioji Station Dep.	Hatanagi Summer Temporary Parking Arr.
23:00	24:15	5:30

Step 2. Hatanagi Summer Temporary Parking → Sawarajima Lodge
At Hatanagi Summer Temporary Parking, transfer to the bus operated by “Tokushu Tokai Forest Co., Ltd.” and get off at Sawarajima Lodge. (Reservation required)
Sawarajima Lodge shuttle bus

The bus operated by Tokai Forest is a shuttle bus to each mountain hut, so staying at a partner mountain hut is mandatory (tent camping not allowed).

Travel time: about 1 hour

Sawarajima Lodge shuttle bus
Hatanagi Summer Temporary Parking	Sawarajima Lodge
7:30	8:30

2. [Going] Shizuoka Station → Sawarajima Lodge

Step 1. Shizuoka Station → Hatanagi Summer Temporary Parking

Southern Alps Hiking Line

From Shizuoka Station, board the “Southern Alps Hiking Line” operated by Shizutetsu Bus and get off at Hatanagi Summer Temporary Parking. (Reservation required)
Reference: Operating period: typically mid-July – mid-August
Fare: ¥3,500

Southern Alps Hiking Line
Shizuoka Station Dep.	Hatanagi Summer Temporary Parking Arr.
10:00	13:10

Southern Alps Access Pack

From Shizuoka Station, board the shared jumbo taxi “Southern Alps Access Pack” operated by Chiyoda Taxi and get off at Hatanagi Summer Temporary Parking. (Reservation required)
Reference: Southern Alps Access Pack

Scheduled operation: typically mid-July – late August
Fare: ¥4,800
Capacity: 8 per session (minimum operation 3 combined ascent/descent)

Southern Alps Access Pack
Shizuoka Station Dep.	Hatanagi Summer Temporary Parking Arr.
11:00	14:15

The bus operated by Tokai Forest is a shuttle bus to each mountain hut, so staying at a partner mountain hut is mandatory (tent camping not allowed).

Travel time: about 1 hour

Sawarajima Lodge shuttle bus
Hatanagi Summer Temporary Parking Dep.	Sawarajima Lodge Arr.
14:30	15:30

3. [Return] Sawarajima Lodge → Shinjuku Station

Step 1. Sawarajima Lodge → Hatanagi Summer Temporary Parking
From Sawarajima Lodge, board the bus operated by “Tokushu Tokai Forest Co., Ltd.” and get off at Hatanagi Summer Temporary Parking. (Reservation required)
Reference: Sawarajima Lodge shuttle bus

The bus operated by Tokai Forest is a shuttle bus to each mountain hut, so staying at a partner mountain hut is mandatory (tent camping not allowed).

Travel time: about 1 hour

Sawarajima Lodge shuttle bus (7/13–8/31)
Sawarajima Lodge Dep.	Hatanagi Summer Temporary Parking Arr.
13:00	14:00

Sawarajima Lodge shuttle bus (9/1 – end of season)
Sawarajima Lodge Dep.	Hatanagi Summer Temporary Parking Arr.
10:30	11:30

Step 2. Hatanagi Summer Temporary Parking → Shinjuku Station
From Hatanagi Summer Temporary Parking, board the Mainichi Alpen-go “Hatanagi Dam ⇒ Shinjuku” and get off at the terminus, Shinjuku Station. (Reservation required)
Reference: Operating period: specific days typically mid-July – mid-October (varies by year)
Fare: from ¥15,500
Travel time: about 6–7 hours

Mainichi Alpen-go
Hatanagi Summer Temporary Parking Dep.	Shinjuku Station Arr.
14:10	20:30 ~ 21:30

4. [Return] Sawarajima Lodge → Shizuoka Station

The bus operated by Tokai Forest is a shuttle bus to each mountain hut, so staying at a partner mountain hut is mandatory (tent camping not allowed).

Travel time: about 1 hour

Sawarajima Lodge shuttle bus (7/13–8/31)
Sawarajima Lodge Dep.	Hatanagi Summer Temporary Parking Arr.
13:00	14:00
14:00	15:00

Step 2. Hatanagi Summer Temporary Parking → Shizuoka Station

Southern Alps Hiking Line

From Hatanagi Summer Temporary Parking, board the “Southern Alps Hiking Line” operated by Shizutetsu Bus and get off at Shizuoka Station. (Reservation required)
Reference: Operating period: typically mid-July – mid-August
Fare: ¥3,500

Southern Alps Hiking Line
Hatanagi Summer Temporary Parking Arr.	Shizuoka Station Dep.
14:25	17:50

Southern Alps Access Pack

From Hatanagi Summer Temporary Parking, board the shared jumbo taxi “Southern Alps Access Pack” operated by Chiyoda Taxi and get off at Shizuoka Station. (Reservation required)
Reference: Southern Alps Access Pack

Scheduled operation: typically mid-July – late August
Fare: ¥4,800
Capacity: 8 per session (minimum operation 3 combined ascent/descent)

Descent trips include a bathing stop along the way.

Southern Alps Access Pack
Shizuoka Station Dep.	Hatanagi Summer Temporary Parking Arr.
15:05	18:55

Photo byT hino