"Sai Yok Noi Waterfall" also known as "Khao Phang Waterfall" is a waterfall that everyone is well. The waterfall is characterized by the collapsed limestone cliffs until becoming the source of the name “Khao Phang Waterfall”. The source of the water is spring water from the mountain and flows along with the different layers of limestone cliffs. It is 35 meters high, spreading along the sloping hills in that area. In some parts of the waterfall, it is a pool that is very suitable for swimming. This Sai Yok Noi Waterfall is part of the Sai Yok National Park responsibility from the roadside in front of the waterfall where there are shops and restaurants lined up. We walked up to the top to see the beauty of Sai Yok Noi Waterfall. During a short walk, We saw a steam locomotive from World War II that was set up by Sai Yok National Park. To commemorate World War II when the Death Railway was built to Burma with a path through the area in front of this waterfall we stopped to take pictures with the steam locomotive as we smelled our mouths because of the loud sound of the waterfall that could be heard. It was as if there was an impulse to rush us to the source of the sound. The beginning of October we visited was a flood season, so Sai Yok Waterfall had a lot of water and the current was quite strong. The surrounding area is so damp with water droplets splashing from the waterfall resulting in the surrounding trees. It is very lush and with the fact that Sai Yok Noi Waterfall is located just a few hundred meters from the main road, it is very popular with both Thai and foreign tourists who wish to swim to get rid of the heat. From the high cliffs of the waterfall, water flows along the limestone cliffs that gradually descend along the slope of this area until we can walk along with the limestone layers from below to the top, this is a place with a lot of water. Walking through the current that flows down is a little dangerous, although the limestone floor is not slippery, it should not be underestimated that it is a good way to walk in the path of the park. It is better prepared than anyone who is looking for a suitable angle for swimming and then can change clothes and swim in the cold water. To the fullest without having to worry about the toilet, the port in any way because the park has prepared toilets and shower rooms or if playing in the water until exhausted, just walk back up to the roadside, there are many shops and restaurants on both sides of the road to choose, including shops selling souvenirs, souvenirs are also located in this area.