Sai Yok National Park (Sai Yok Yai Waterfall)
Riverside national park where Sai Yok Yai waterfall drops directly into the Khwae Noi. Known for a suspension bridge, raft houses, limestone caves and Thailand's smallest bat (Kitti's hog-nosed bat) in the area.
- Category
- National Parks
- Entrance fee
- Foreigner approx 300 THB adult / 150 THB child, plus vehicle fee. As of 2026, confirm locally (DNP).
- Hours
- Approximately 08:00-16:30 daily. As of 2026, confirm locally.
- Best time
- Cool season Nov-Feb; the waterfall is fullest at the end of the rains.
- Time needed
- Half day
- Difficulty
- easy
About Sai Yok National Park (Sai Yok Yai Waterfall)
A riverside national park where the Sai Yok Yai waterfall drops straight into the Khwae Noi, which is a lovely, unusual sight. It's less commercial than Erawan and known for its suspension bridge, raft houses and limestone caves, plus the area is home to Kitti's hog-nosed bat, said to be the world's smallest.
Set your expectations right on the waterfall itself. This one's about the river setting rather than sheer height, so come for the whole scene, bridge, water and jungle, not a towering cascade.
It's famous for raft-house stays and has served as a filming location, so it makes a relaxed half day. The falls are fullest at the end of the rains heading into cool season.
Highlights
- Sai Yok Yai waterfall dropping directly into the Khwae Noi
- Suspension bridge over the river
- Raft houses and limestone caves
- Home area of Kitti's hog-nosed bat, the world's smallest
- Less commercial feel than Erawan
Tips
- Come for the river setting, the falls are about scene not height
- Visit at the end of the rains into cool season for fullest flow
- Consider a raft-house stay to make the most of the setting
- Reach the river by longtail boat from local piers if you want
How to get there
About 100 km NW of Kanchanaburi on Hwy 323. Car/tour ~1.5-2 h; buses toward Thong Pha Phum/Sangkhla Buri pass the turnoff. River access by longtail boat from local piers.