Also known as: Sorachigawa, Shisorapuchi (upper feeder)
Among Hokkaido's clearest rivers; Daisetsuzan headwaters, low gorge, Kanayama Lake area scenery

Whether there is a river here on your dates, and what kind of water it is.
Snowmelt-driven surge (spring thaw) gives best flows; Kanayama Dam on Sorachi system; rain/typhoon spikes
Approx late Apr-Oct; peak snowmelt late Apr-mid May (Confirm. operator dates)
Late April to mid-May snowmelt for best rapids; summer-autumn family season
Cold Daisetsuzan snowmelt; early-season water very cold; wetsuit provided; top-class clarity
Spring thaw flooding boosts rapids; typhoon-season (Aug-Oct) rain spikes; cold high water early season
A river changes grade with its level. These grades describe a normal flow - in flood the same run is harder, and often a different run entirely. Check the gauge before you commit.
Class 3- (Kokutai course); commercial rafting sections beginner/family grade; Goryu-no-se (class 2) on Shisorapuchi
Rafting; canoe/kayak slalom
Rubber boats 3-8 pax; family and beginner tours; slalom paddlers use Kokutai separately
Family-friendly commercial tours from ~age 5; Kokutai run for skilled paddlers; ~30km SE of Furano City
Kokutai run drops a pushy set, threads two large boulders, finishes with a tricky ~1.5m waterfall; commercial tours avoid hardest features
Boulders and a ~1.5m drop on Kokutai; cold water; commercial line avoids main hazards
Kokutai Course (Ochiai, Minami-Furano) / commercial family section
Moderate; family clientele in summer; quieter than Niseko flagship rivers
Guided tour fee (Confirm. current price); operator-run
Permits and operators change - confirm before booking.
Kokutai put-in ~200m upstream of Togetsu Bridge (Ochiai), river-right stairs, gravel parking; take-out downstream
Operator shuttle; car access via Route 38/237; Kanayama Lake campground nearby; remote from rail
No river camps on run; Kanayama Lake campground and Minami-Furano/Furano lodging
Wetsuit/PFD/helmet by operator; mobile coverage patchy; bring warm layers
Flying Dolphins Adventure Service (Furano); Furano-area outfitters
Cold snowmelt water; Kokutai class-3 drop for skilled only; confirm flow/season
Road-accessible put-in/take-out; operator safety craft; remote area - plan self-rescue
Guided for commercial rafting; experienced paddlers self-support on Kokutai
This profile is desk research, compiled from public sources - not a first-hand river run report. Coordinates are approximate.