Haew Sai Waterfall (Nam tok Haew Sai)

Khao Yai National Park / Khorat Plateau, Nakhon Ratchasima, Thailand

About Haew Sai Waterfall (Nam tok Haew Sai)

Hiking Distance: 2.5km round trip
Suggested Time: 69-90 minutes

Date first visited: 2008-12-28
Date last visited: 2008-12-28

Waterfall Latitude: 14.43901
Waterfall Longitude: 101.41372

Waterfall Safety and Common Sense

Haew Sai Waterfall (Nam tok Haeo Sai) contrasted the experience of most of the other waterfalls we encountered in Thailand.

That was because this one was a little bit off the beaten track and hence it provided a far quieter and less crowded experience.

Haew_Sai_011_12272008 - Haew Sai Waterfall
Haew Sai Waterfall

From what we could estimate, the falls maybe on the order of 5m or so tall (possibly 25ft tops).

However, we saw it at off peak flow so the wide segmented state that we saw it in could very well be joined together into a singular continuous entity under higher flow.

Yet if that were the case, the river would also be flooded and access to an acceptable viewing spot might be a dangerous proposition.

As for the quiet and serene experience, during the hour or so that we hiked to and relaxed at the Haew Sai Waterfall, we were the only ones on the trail the entire time.

Haew_Sai_003_12272008 - The narrow and overgrown trail leading closer to the Haew Sai Waterfall
The narrow and overgrown trail leading closer to the Haew Sai Waterfall

Perhaps part of that was because we did the hike in the morning (while most people were still sleeping in their tents, I reckon), but it was still saying something considering how it seemed that everywhere we went there tended to be a crowd.

In order to access this small but attractive waterfall (maybe 10m tall), we had to deviate from the Haew Suwat Waterfall path leading to its base.

Then, we took a 1km detour (in each direction) on a much narrower, overgrown, and rough track.

The track wasn’t too difficult, but there were a handful of downed trees that we had to limbo under.

We also had to negotiate a steep 100m scramble down an embankment.

Haew_Sai_007_12272008 - Sign pointing the way down at the steep descent leading to the banks of the river before the Haew Sai Waterfall
Sign pointing the way down at the steep descent leading to the banks of the river before the Haew Sai Waterfall

So given all that, I could understand why the signs said we were supposed to go with a guide (which we had one in Pang).


The Haew Sai Waterfall resides in Khao Yai National Park near Nong Nam Daeng in the Nakhon Ratchasima Province, Thailand. It is administered by the National Park, Wildlife, and Plant Conservation Department. For information or inquiries about the area as well as current conditions, visit their website.

Haew_Sai_002_12272008 - Embarking on the signposted detour to the less popular Haew Sai Waterfall
Haew_Sai_004_12272008 - It can get a little overgrown on this trail considering it was narrow and less developed than for the more popular Haew Suwat Waterfall
Haew_Sai_005_12272008 - This hike got us to sweat quite a bit more than the other Khao Yai hikes that we had done up to this point
Haew_Sai_015_12272008 - Julie checking out the Haew Sai Waterfall
Haew_Sai_018_12272008 - Another look at Julie checking out the Haew Sai Waterfall
Haew_Sai_028_12272008 - Another look at the Haew Sai Waterfall in long exposure
Khao_Yai_007_12272008 - Near the Haew Sai and Haew Suwat waterfalls were busy campgrounds like this one
Khao_Yai_006_12272008 - On the way to the Haew Sai waterfall, we drove by this overlook, but it was too bad that the clouds kind of covered most of the panorama

This waterfall starts from the same car park and uses part of the same trail as that of the Haew Suwat Waterfall.

We proceeded on the path to the base of the Haew Suwat Waterfall until we were confronted with a signposted fork.

And it was from that point that we took our detour.

For logistics and a few more details about accessing the car park for this falls, see the Haew Suwat Waterfall page.

To give you a sense of context, Pak Chong (where we spent the night) was about 3 hours northeast of Bangkok or 2 hours east of Ayutthaya.

Find A Place To Stay

Sweep from downstream to upstream of the very peaceful waterfall and settings

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Tagged with: khao yai, national park, khorat plateau, nakhon ratchasima, bangkok, thailand, waterfall, ayutthaya, pak chong, haew suwat

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Johnny Cheng is the founder of the World of Waterfalls and author of the award-winning A Guide to New Zealand Waterfalls. Over the last 2 decades, he has visited thousands of waterfalls in over 40 countries around the world and nearly 40 states in the USA.
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