Mt. Aizu-Komagatake

Mt. Aizu-Komagatake (会津駒ヶ岳, 2,133 m) is a peak in Hinoemata Village, Fukushima Prefecture, within Oze National Park, and is counted among the 100 Famous Mountains of Japan.

The summit area features Koma-no-Ōike (Koma Pond) and a sprawling alpine wetland — known as “the Sky Paradise” — full of pond-tarns and seasonal blooms (Hakusan-kozakura, Nikkō-kisuge, chinguruma). A gentle one-hour ridge walk over boardwalks leads to Mt. Chūmon (2,060 m), and the broad ridge-top wetland is unforgettable. Mt. Aizu-Komagatake is one of the Tōhoku region’s premier flower mountains.

The trailhead is at Takisawa (1,090 m, about 30 min on foot from the Komagatake-Tozanguchi bus stop). Access is via the Tobu–Yagan–Aizu Railway lines to Aizu-Tajima Station, then by Aizu Bus.

*Timetable last checked: May 20, 2026

How to access the trailheads

1. [Outbound] Aizu-Tajima Station → Komagatake-Tozanguchi (Tobu + Yagan + Aizu Railway + Aizu Bus)
2. [Outbound] Komagatake-Tozanguchi → Takisawa Trailhead (about 30 min on foot)
3. [Return] Komagatake-Tozanguchi → Aizu-Tajima Station

Reference course time (Takisawa – Aizu-Komagatake – Chūmon round trip, ~7 h 30 min, 12 km, ~1,043 m gain)

Takisawa Trailhead (1,090 m) → (1:30) → water source → (1:00) → Koma-no-Ōike (2,060 m, Koma-no-Koya) → (0:30) → Aizu-Komagatake summit (2,133 m) → (1:00) → Mt. Chūmon (2,060 m) → (1:00) → Aizu-Komagatake → (0:20) → Koma-no-Koya → (1:30) → Takisawa

Reference course time (Takisawa – Aizu-Komagatake out-and-back, ~6 h 30 min, 10 km, beginner – intermediate)

Takisawa → (1:30) → water source → (1:00) → Koma-no-Koya → (0:30) → Aizu-Komagatake summit → (1:30) → Koma-no-Koya → (1:30) → Takisawa

1. [Outbound] Aizu-Tajima Station → Komagatake-Tozanguchi (Tobu + Yagan + Aizu Railway + Aizu Bus)

From Tobu Asakusa Station, take the Tobu Kinugawa Line / Yagan Railway / Aizu Railway to Aizu-Tajima Station (about 3 h via the Revaty Aizu Ltd. Express). From Shinjuku, the through-running Revaty Aizu Ltd. Express takes about 3 h 40 min. From Aizu-Tajima, the Aizu Bus to Komagatake-Tozanguchi takes about 1 h 30 min; 4 trips/day, operating 1 May – 31 October only.

Train access summary:

Operating period: Aizu Bus 1 May – 31 October (suspended in winter; trips marked ● run only 23 May – 25 October)
Travel time: Aizu-Tajima → Komagatake-Tozanguchi about 1 h 30 min
Fare: Aizu-Tajima → Komagatake-Tozanguchi approx. ¥2,500; Aizu-Tajima → Hinoemata (Michi-no-Eki) ¥2,330
Frequency: 4 trips/day (the ●6:30 early-morning service runs only 23 May – 25 October)

Aizu-Tajima Station → Komagatake-Tozanguchi (Aizu Bus, 1 May – 31 October)

Note: A separate early-morning service runs only 23 May – 25 October (Hinoemata ●6:30 → Komagatake-Tozanguchi ●6:32). See the Aizu Bus official site for details.

References: Aizu Bus official | Tobu Railway | Aizu Railway
Contact: Aizu Bus Tajima Office ☎0241-62-0134

2. [Outbound] Komagatake-Tozanguchi → Takisawa Trailhead (about 30 min on foot)

From the Komagatake-Tozanguchi bus stop, walk about 30 min (~2 km, gentle uphill paved road) to the Takisawa Trailhead (1,090 m), or drive about 5 min (~20 free parking spaces, fills up quickly). The trailhead has a wooden staircase (the namesake of “Takisawa”), a sign, and toilets; there are no shops.

Travel time: 30 min on foot (2 km) / 5 min by car
Note: Hinoemata is a remote Oku-Aizu village. Convenience stores are only in the village center. Stock food and water at the Michi-no-Eki Oze-Hinoemata (near the Komagatake-Tozanguchi bus stop). Many hikers also take advantage of the inns in Hinoemata Onsen for a pre-hike overnight stay.

References: Oze Hinoemata Onsen Tourism Association | Koma-no-Koya Access
Contact: Oze Hinoemata Onsen Tourism Association ☎0241-75-2432

3. [Return] Komagatake-Tozanguchi → Aizu-Tajima Station

After descending, walk about 30 min from Takisawa back to the Komagatake-Tozanguchi bus stop. The last bus from Komagatake-Tozanguchi is 16:42 (or ●17:52 only 23 May – 25 October), so if you also walk out to Mt. Chūmon, plan to stay overnight at Koma-no-Koya.

Operating period: Aizu Bus 1 May – 31 October (suspended in winter)
Travel time: Komagatake-Tozanguchi → Aizu-Tajima about 1 h 38 min
Fare: Komagatake-Tozanguchi → Aizu-Tajima approx. ¥2,500
Frequency: 3-4 trips/day (the ●17:52 evening service runs only 23 May – 25 October)

Komagatake-Tozanguchi → Hinoemata → Aizu-Tajima (Aizu Bus)

Recommended connection: Komagatake-Tozanguchi 16:42 → Aizu-Tajima 18:20 (you may not catch the 17:48 onward train). For a reliable same-day return, take Komagatake-Tozanguchi 11:02 → Aizu-Tajima 12:40 → Asakusa 16:16 / Shinjuku 17:09 (means you need to descend in time), or — most realistically — stay one night at Koma-no-Koya and descend the next morning.

References: Aizu Bus official
Contact: Aizu Bus Tajima Office ☎0241-62-0134

Routes & Koma-no-Koya Hut Info

Main Routes
– Takizawa trailhead round trip (intermediate, ~7h round trip / 10km): Takizawa trailhead → water source → Koma-no-Koya (1,953m) → Aizu-Koma-ga-take summit (2,133m)
– Chumondake traverse (intermediate, +2h): Koma-no-Koya → Chumondake (2,060m, ridge wetlands)

Mountain Hut
– Koma-no-Koya (1,953m, unstaffed emergency hut): manned late May – late October, advance reservation required; off-season unstaffed/open
– Reserve via Hinoemata Village Tourism: 0241-75-2432

Regulations
– Hakusan-kozakura bloom: early-mid July
– Autumn foliage: late September – mid October
– Forest road closed until late May (snowmelt)

Emergency Contacts
– Hinoemata Village: 0241-75-2311
– Minami-Aizu Police: 0241-62-0110

Reference: Hinoemata Village Tourism Info

Photo by Raita Futo