Mae Taeng River
Also known as: Mae Tang, Maetaeng, Nam Mae Taeng
Jungle valley/canyon between Chiang Dao and Huai Nam Dang NP; domestic elephants along banks; hill-tribe country
Is there water?
Whether there is a river here on your dates, and what kind of water it is.
Rain-dependent, no major upstream dam control; flashy in monsoon. Confirm.
Rain-fed; strongest Jul-Oct; creeky/low by Dec
Jul-Oct (monsoon, biggest water); reliable commercial window late May-Feb/Mar
Warm tropical; no wetsuit
Monsoon flash-flooding raises grade to V; heat/humidity; leeches in jungle camp
Grade & who can come
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 III-IV; ~2 km continuous Class IV core; up to V in Aug high water
Commercial raft; whitewater kayak (kayak school)
Kids 7-12 portage/skip the Class IV core; rafts + kayaks run together; 2-3 day kayak school for novices
Family-capable on milder sections; core IV for fit/older participants
The run
'The Middle' - ~1 mile / 6 rapids with pools; final tight slot/constriction where rafts flip. Rapid names not published. Confirm.
Tight slot at end of 'The Middle' (flip risk); strainers/rocks at low water; undercut potential
Ban Sop Kai to Muang Khut / Mae Malai
Busy day-trip corridor from Chiang Mai; multiple operators
Access & shuttle
No named river permit; via licensed operator; kayak boat hire ~US$55-68 (2014). Confirm current.
Permits and operators change - confirm before booking.
Road parallels the river the whole run (easy shuttle); ~90 min-2 hr from Chiang Mai
Operator hotel pickup/drop-off included; self-shuttle simple
Siam Rivers jungle base-camp/homestay at Sop Kai (put-in)
All safety gear provided; remote valley - patchy signal. Confirm.
Chiang Mai (hub); Sop Kai base camp; Mae Malai junction
Hazards & exits
Grade jumps sharply with rain; end-of-middle slot flip risk; low-water rock exposure
Riverside road enables vehicle evacuation along most of the run; swiftwater-rescue-trained staff (Siam Rivers)
Guided for rafts; experienced kayakers arrange boat + local buddy via Siam Rivers
This profile is desk research, compiled from public sources - not a first-hand river run report. Coordinates are approximate.