Ti Lo Su (Thi Lor Su or Tee Lor Su) is formed by Klotho river stream when it drops elevation at about mid way between the road 1288 and Ban Ko Tha
Karen village. In the wet season its size could be about 300 meters wide and roughly 180 meters in height.
It is said to be the largest waterfall in Thailand, and is the main attraction of Umphang tourism.
The camp site and office is located 1.5 km downstream from the waterfall. Public toilets and wash rooms are available.
However if you come during Thai newyear period (usually in the middle of April) and X-mas season there will be
many mostly local tourists. From November to May pick up trucks can come to the camp yard. In the wet season the road will
be muddy and flooded, and cars are not allowed. You have to go on foot.
A section of Thi Lor Su waterfall in wet season (July 2006)
Without using car there are basically three routes from Umphang town. One is by rafting down the Mae Klong river to a point, say Tha Sai, and continue
to the camp by hiking. Someone needs to go down further with the raft to send it back to Umphang, or wait till you come back to
continue rafting down.
Second is to start from somewhere on the highway 1090 between Umphang and Ban Platha,
walk to Mae Klong river, cross it below Tha Sai and trek to the camp. From July to October swimming across the Mae Klong
river will be difficult. The third route is walking from a place on road 1288. For all these routes you have to go with a
local guide who knows the route very well. Gear, food, medication and permit (informing the wildlife sanctuary office)
are necessary.
After Ti Lor Su, Klotho river goes onto pass by Ban Ko Tha and then it drops again forming Ko Tha waterfall before finally
entering into Mae Klong river.
