A lot of Calamus

Heading south from Mae Sot towards Thailand's wild west capital of Umphang, there are a few opportunities to visit some waterfalls. One of which is the often visited Pha Charoen waterfall located in the national park of the same name.
However as one also has to return via the same road there's another opportunity to visit a waterfall in the same national park without everybody being stressed out about yet again a waterfall.

Pa Wai (or Ba Wai) waterfall is well signposted off the Umphang - Mae Sot highway no. 1090 though the distance from the highway is not the announced 9 km rather double. Access is south of Phop Phra district around km 40.


Apparently the name of the waterfall is derived from the plant of the same name (Calamus Caesius, rattan, see also below).

There aren't many facilities other than a toilet and a shelter, though there are a couple of makeshift bridges.

In reality the stream falls over a great many steps amounting to a fall of around 40m. As the steps are small and wide there are many trees in-between giving the area something special, though there is no big pond at the bottom of the falls, there are a number of steps to splash around in.


On the other side there is a deep sink hole (see photo above) where a part of the stream falls in, only to reemerge at the foot of the cliff. there is also a cave for those visitors fortunate enough to have a torch on them all the time. And a large tree at the bottom of the cliff.

The official Thai Department of National Parks website there is this about the waterfall:

'Bawai [Pa Wai] waterfall is a 100-step limestone waterfall, originating from Huai Wai with the flowing water throughout the year. The Waterfall is situated in virgin forest consisting of medium-sized/large plants. The Waterfall is called “Bawai Waterfall” because there are a lot of Calamus Caesius within the area'.

From wikitravel:

'To admire this waterfall, one must walk from its ground floor to the upper level. Then, go further for around 30 m, visitors will see a channel of about 10 m wide where flowing water falls and disappears under the mountain base. The waterfall originates from Pa Wai Creek where water flows all year round and many rattan plants grow. It is therefore named ‘Pa Wai’, which means a rattan forest'.

Now go through this cave ...

Kanchanaburi province, Thailand is along the well trodden tourist path which takes in the River Kwai railway as well as jungle surroundings. It's home to some of Thailand's more famous waterfalls such as Erawan and Sai Yok.

Off this west-east tourist path is located the national park of Chaloem Rattanakosin. Getting here means taking highway 3086 60 km north of Kanchanaburi town to Nong Prue and then going west for about 20 km along the 3480 which brings you to the national park entrance.

Though off the tourist path, locals are out in numbers in late December 2009. Just beyond the entrance is a large car park with restaurants, bungalows and camping facilities. On this day there is even a first aid tent with its complete (limited) stock of medicines on show.

Most tourists are all heading for the same waterfall, Tri Trong. To get here one needs to pass 300 m through a cave (Tham Lod Noi) as the stream on which the waterfall lies does the same. Lights are on during day. From the cave it's another 1 km to the waterfalls.

Tri Trong has three levels and the picture above is of the first level. The path here is beautiful, both the cave as well as the path following a stream along a deep valley which provides for radiant growth. Beyond the falls the path steepens and ends in a even larger cave (Tham Lod Yai).

Elsewhere in the national park are the waterfalls of Tran Ngern / Tran Thong and Slider.