Day 1 – Genshigahara to Kamihorokamettoku-hinangoya Hut 原始ヶ原～上ホロカメットク避難小屋
9h 10m 1310m 286m 10.8km Blog
Gorgeous start to the traverse, climbing up to the Daisetsuzan plateau through the peaty, marshy, old-growth forest of Genshigahara. Long first day with a heavy pack, considering the hefty altitude gain. Once you’re at the Furano-dake summit, most of the climbing for the trip is done. Kamihorokamettoku-hinangoya Hut 上ホロカメットク避難小屋 is basic but functional, has a toilet.
There’s a spring and stream about one hour from the trailhead. From there till Kamihorokametokku Hut (7hrs walking) there are no water sources (hut water dries up by end of August).
Day 2 – Kamihorokamettoku Hut to Bieifuji-hinangoya Hut上ホロカメットク避難小屋～美瑛富士避難小屋
6h 461m 570m 8km Blog
Trekking via the desolate, martian landscape of the highly active Tokachi-dake 十勝岳 (2077m) volcanic area. Biei-dake 美瑛岳 (2052m) and Biei-fuji 美瑛富士 (1889m) peaks are easily attainable as side-hikes along the way, so be sure to bag them if the weather allows it. Strong hikers may want to compress Day 2 and 3 into one long day. Bieifuji-hinangoya Hut 美瑛富士避難小屋 is basic with no toilets, but there’s a privacy booth for use with toilet bags – pack your own poop out (details here).
No water sources between the two huts. Biei-fuji Hut water can dry up as early as end of July.
Day 3 – Bieifuji Hut to Futago-ike Campsite美瑛富士避難小屋～双子池チャンプ指定地
4h 50m 312m 640m 5.1km Blog
Say goodbye to Tokachi-dake day-trekkers, and enjoy the quiet solitude of the remote mid-section of the Daisetsuzan Range. Oputateshike-yama オプタテシケ山 (2012m) and its dramatic, airy narrow ridge are the highlights of the day. Watch out for curious nakiusagi pika rodents in the rocks. Futago-ike campsite 双子池キャンプ指定地 is spartan, with no toilets – pack your poop out.
Futago-ike campsite has plenty of water available for filtering till late August. If campsite is dry, head to Futago-ike ponds 20min further north to fill up.
Day 4 – Futago-ike to Tomuraushi-yama双子池キャンプ指定地～トムラウシ山
9h 40m 886m 344m 11.8km Blog
Now deep in a seldom-walked zone of the Daisetsuzan National Park, expect broad alpine scenery. Trail deteriorates somewhat, with the first half of the day walking through thick, head-high aromatic dwarf pines. Views from the Koganegahara plateau 黄金ヶ原 are inspiring. Tomuraushi-yama トムラウシ山 (2141m) has an infamous past, but is a popular remote peak. Camp 20 minutes below the summit at the spartan Minami-numa Campsite 南沼キャンプ指定地 – no toilets, pack your poop out (there are privacy booths at the campsite).
There’s only one water source during the day – about halfway near Sansendai 三仙台. Plenty of water at the Minami-numa Campsite. Both sources have water throughout the season.
Day 5 – Tomuraushi-yama to Chubetsudake Refugeトムラウシ山～忠別岳避難小屋
5h 30m 311m 626m 10.6km Blog
Expect more hikers on the trail – Tomuraushi-yama northwards is much more well-travelled. Hike over vast boulder fields, past scenic tarns in the Japanese Garden 日本庭園, and across easy-walking boardwalks. Make the day even shorter by staying at Hisagonuma Refuge ヒサゴ沼避難小屋, a basic hut next to a large mountain tarn. Chubetsudake Refuge 忠別岳避難小屋 is also beautifully located, next to a snow patch and creek suitable for paddling in. Both huts have toilets.
One all-season water source along the way (Amanuma Tarn 天沼), water at Chubetsudake Hut till early September.
Day 6 – Chubetsudake Refuge to Hakuundake Refuge忠別岳避難小屋～白雲岳避難小屋
5h 40m 628m 292m 10.7km Blog
Enjoy views of the dramatic cliffs of Chubetsu-dake 忠別岳 (1963m), and the expansive Hiragatake Plateau 平ヶ岳. Take in views down to the Kogen-numa 高原沼 tarns below – home to a high concentration of brown bears. Hakuundake Refuge 白雲岳避難小屋 was rebuilt in 2020, has toilets and great views. We combined Days 6 & 7 into one long day.
Chubetsu-numa Tarn 忠別沼 and Hakuundake Hut have water all season.
Day 7 – Hakuundake Refuge to Uraasahi Campsite白雲岳避難小屋～裏旭キャンプ指定地
5h 30m 561m 468m 8.4km Blog
Timing and distances above include summiting Hakuun-dake 白雲岳 (2230m) and Asahidake (2291m) along the way – drop packs at junctions and they’re worth the extra side-trips. You’re now well within the Asahidake volcanic area – observe the gigantic Ohachidaira crater 御鉢平 and walk on fine white volcanic rock. Uraasahi Campsite 裏旭キャンプ指定地 is very basic, no toilets – pack out your own poop. Summit of Asahidake, Hokkaido’s highest peak, is so close you could touch it.
Plenty of water at Uraasahi Campsite all season.
Day 8 – Uraasahi Campsite to Aizankei裏旭キャンプ指定地～愛山渓温泉
7h 30m 412m 1473m 11.8km Blog
Some of Hokkaido’s highest peaks are concentrated at the north end of Daisetsuzan National Park, and today you’ll bag a number of them, with relatively little climbing involved. Descend to Aizankei via the Numano-daira 沼ノ平 marshlands for some extra variation (adds 1hr). Savour completing the longest Daisetsuzan traverse by staying a night at the Aizankei Eco Lodge onsen 愛山渓温泉エコロッジ.
Stock up well at campsite; no water for about 4hrs. Water available at tarns lower down on descent, if going via Numano-daira.