Also known as: Karnali / Humla Karnali
Wild West jungle canyon; sal forests, waterfalls, rock formations, white sand beaches

Whether there is a river here on your dates, and what kind of water it is.
Snow/rain-fed big-volume; low-medium best (constrained canyon); high flows more dangerous
Oct-Nov and Mar/Apr-Jun; Sep high water expert-only; monsoon Jun-Sep unrunnable-high. Confirm.
Oct-Nov (prime); Apr-Jun (spring)
Warm to mild lower-elevation water; jungle climate
Monsoon flooding Jun-Sep; flash rises; heat in lower valley
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 IV-V (operators); III-IV at low water (Whitewater Guidebook)
Rafting; kayaking (raft-supported expedition; safety kayak)
First ~20 km class II-III warm-up; committing gorge mid-run; river mellows at Seti Karnali confluence
Advanced rafters / experienced paddlers; not for beginners; remote multi-day commitment
God House (class 5, bus-size hole); Juicer, Jailhouse, Flip and Strip, Sweetness and Light, Freight Train; constrained canyon rapids that grow sharply with volume
God House hole; big holes and boils at high water; long swims in remote canyon; scout/portage major rapids
Dungeswar (Tallo Dhungeshwor) to Chisapani Bridge
Remote; low crowds; wilderness solitude
Rafting river permit arranged by operator; Nepali tourist visa required; no special park permit at put-in. Confirm via NARA.
Permits and operators change - confirm before booking.
Put-in Dungeswar via ~5-6 hr drive from Surkhet through sal forest; take-out Chisapani Bridge on Mahendra Highway near Bardia
Fly Kathmandu-Nepalgunj (~55 min) then drive to Surkhet (overnight), then ~5-6 hr 4WD to put-in; or ~15-20 hr drive. Confirm.
Wild river beach camps (crystal-clear sandy beaches); no booking; operator-supported
Full expedition gear; no resupply; no mobile coverage in canyon; satellite comms recommended
Nepalgunj, Surkhet, Bardia hubs; operators in Kathmandu/Pokhara
Remoteness, big-volume holes, monsoon flash floods, long rescue times; proposed dams threaten the run
Very limited exits in gorge; road access improves after Seti Karnali confluence; heli evac via Nepalgunj/Surkhet
Guided raft-supported expedition with safety kayakers standard; self-support kayak experts only
This profile is desk research, compiled from public sources - not a first-hand river run report. Coordinates are approximate.