Rating: 3.3/5 (7 votes)

Opening Days: Daily

Opening Hours: 08.00 - 17.00 hrs.

 

Fong Sabu Waterfall in Prachinburi Province is located in Khao Yai National Park on the Prachinburi side. It requires trekking deep into the forest from Ranger Station Khao Yai 10 (Prachin Buri) along a trail that involves crossing streams, climbing rocks, and crawling through bamboo thickets. The atmosphere is peaceful and pristine, perfect for those who enjoy trekking and wish to experience true wilderness.

 

The name “Fong Sabu” (“soap bubble”) comes from the sight of water flowing powerfully over rock rapids, creating fine white foam resembling soap bubbles. This phenomenon is most visible during the rainy season and early winter. When sunlight shines on the water spray, the foam becomes strikingly bright above the natural stone terraces.

 

The trek usually begins at Ranger Station Khao Yai 10 near Takhro Waterfall, following the stream through the forest and passing Konta Dam Waterfall before reaching Fong Sabu Waterfall. The average distance is about 8 kilometers, taking 4–5 hours depending on weather and water levels. Visitors should always contact the park rangers in advance for guidance and permission.

 

The best time to visit is from late rainy season to early winter, when the water volume is still high and the foam effect is most beautiful. Trails are also drier and safer than during peak rains. In summer, water levels are lower and the foam less impressive, but trekking is easier. It is important to assess physical fitness, prepare proper trekking shoes, drinking water, dried food, first-aid kit, and avoid days of heavy rain to reduce flash flood risk.

 

The key to visiting here is safety and respect for nature. Follow the guide, do not cut trails, pin your starting point on your phone, allow extra time for rests and unexpected delays, take all trash back, and strictly follow ranger advice.

 

 

It is in Khao Yai National Park, Prachinburi side. The trail starts from Ranger Station Khao Yai 10 (Prachin Buri) and passes Takhro and Konta Dam waterfalls before reaching the site.

 

On average 4–5 hours, covering about 8 km, depending on weather, water levels, and rest stops.

 

From late rainy season to early winter, when water levels are high and clear. The white foam is most visible, but heavy-rain days should be avoided.

 

Highly recommended. Always arrange with rangers or a local guide in advance due to risks such as strong currents and confusing forest trails.

 

Swimming is possible only at calm spots deemed safe by rangers. Avoid swimming during or right after heavy rainfall.

 

It depends on park regulations and weather conditions at the time. Camping is allowed only in designated areas approved by rangers.

 

Non-slip trekking shoes, sufficient drinking water, dried food, rain jacket/warm clothes, insect repellent, first-aid kit, flashlight, and spare batteries. Plan for limited cell signal and allow extra time for unforeseen situations.