When are the waterfalls at their best?

Late wet season — roughly August to November — is when Nang Rong, Sarika, and the other falls run full. By the late dry season (March–April) flow drops sharply and some pools shrink.

Is Nakhon Nayok part of Khao Yai National Park?

Nakhon Nayok province borders Khao Yai's southern boundary, and several of the park's waterfalls fall within it. The main park headquarters and the most popular game-viewing roads, however, are accessed from Pak Chong in Nakhon Ratchasima.

What is Khun Dan Prakan Chon Dam?

Initiated under royal patronage, Khun Dan Prakan Chon is a giant roller-compacted concrete dam used for flood control, irrigation, and hydroelectric power. The crest is open to visitors for views over the reservoir and surrounding mountains.

Nakhon Nayok Province Guide — Waterfalls, Khun Dan Dam & Central Thailand

About Nakhon Nayok Province

Nakhon Nayok is a small, green province about 100 km northeast of Bangkok at the southwestern foot of the Sankamphaeng Range, on the doorstep of Khao Yai National Park. It's a favourite weekend destination for Bangkok families thanks to its waterfalls, the massive Khun Dan Prakan Chon Dam, and easy outdoor activities like rafting and ATV trails. The Chulachomklao Royal Military Academy is also based here, lending the area its orderly, parade-ground feel.

Key facts

Population: 260,081 (2020)
Area: 2,122 km²
Density: 123 / km²
Districts: 4
Capital: Nakhon Nayok
ISO code: TH-26

National parks (1)

Khao Yai National Park

All 4 districts

Ban Na · Mueang Nakhon Nayok · Ongkharak · Pak Phli

Top Highlights

Khun Dan Prakan Chon Dam
one of the world's longest roller-compacted concrete dams
Nang Rong Waterfall
a multi-tier cascade with pools popular for cooling off
Sarika Waterfall
a tall, dramatic falls inside Khao Yai's southern foothills
Wang Takhrai Park
a riverside garden area popular for picnics and rafting

Getting There

Nakhon Nayok is about 1.5 hours by car from Bangkok via Highways 305 or 33. Buses run from the Northern (Mo Chit) Bus Terminal. There is no direct passenger train service, so most visitors drive.

Inside Nakhon Nayok

National parks (1)

Khao Yai National Park216,800 km²

Districts (4)

Ban Na ·Mueang Nakhon Nayok ·Ongkharak ·Pak Phli

Mapped in Nakhon Nayok

53 places of interest recorded in OpenStreetMap. Coverage is contributed by volunteers and varies by area, so treat these as a guide to what is mapped rather than a complete inventory.

33Temples
7Markets
3Waterfalls
3Viewpoints
3Historic sites
3Attractions
1Family attractions

Named examples

Frequently Asked Questions

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Sources

Facts on this page last checked 1 August 2026.

1.Q466212 — population, area, districts, coordinates — Wikidata (Wikidata), retrieved 1 August 2026
2.Background reading — Wikipedia (Wikipedia), retrieved 1 August 2026Linked for context; no text is reproduced from it.
3.Official provincial website — Provincial administration (Official source), retrieved 1 August 2026

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