Kbal Chhay waterfall is located in Mondul Seima district, about 16 klometers north of Koh Kong provincial town. Kbal Chhay or Koh Por is a natural site along a high mountain range and forest. To reach Koh Por, visitors travel along a stream amid beautiful scenery.

Kbal Chhay gets water from the Pursat stream. The waterfall is 10 meters high and 8 meters wide during the rainy season. In dry season there is less water, so locals and tourists visit the site and relax under the big rocks that resemble a cave.