Rating: 4/5 (6 votes)

Open Days: According to announcements by Kaeng Krachan National Park (opening–closing may vary by season and safety conditions)

Opening Hours: Visiting rounds are generally set by official notice (approximately 08:00 – 15:00)

 

Pha Nam Yod Waterfall is a rare limestone “umbrella-tiered” waterfall located in Village No. 14, Khao Krapuk Subdistrict, Tha Yang District, Phetchaburi Province, within the boundaries of Kaeng Krachan National Park. Unlike large vertical waterfalls, Pha Nam Yod is defined by layered limestone formations that extend outward like overlapping umbrellas. When water flows across the rock surface, it spreads into thin curtains and droplets, creating a soft, veiled effect that gives the waterfall its name “Nam Yod,” meaning “dripping water.”

 

The overall height is approximately 35 meters, with a width of around 15 meters, though the visual impact depends largely on water volume. During the rainy season and late rainy season, the cascading sheets of water clearly reveal the three distinct limestone tiers. In drier months, the flow reduces to gentle trickles, exposing more of the sculpted rock surface and highlighting the geological texture shaped over decades.

 

The waterfall sits within the western forest zone of Kaeng Krachan National Park, Thailand’s largest national park and part of a UNESCO World Heritage forest complex. Access requires a forest walk of approximately 2 kilometers, making the journey an integral part of the experience. The round trip generally takes about 2 hours depending on pace and trail conditions. This moderate hike allows visitors to pass through mixed evergreen forest, cross small streams, and observe birds, insects, and micro-ecosystems along the way.

 

Geologically, the distinctive umbrella-like formation results from limestone deposition. Rainwater dissolves calcium carbonate and redeposits it gradually along rock surfaces. Over time, repeated mineral layering forms protruding shelves that resemble stacked parasols. The phenomenon reflects long-term chemical weathering and mineral accumulation rather than abrupt geological shifts. This slow natural engineering explains why the structure appears smooth, curved, and organically layered.

 

At the base of the waterfall, a shallow pool sometimes displays emerald-green tones. The coloration is influenced by mineral content, suspended particles, and light reflection from the limestone floor. After heavy rainfall, sediment runoff may temporarily turn the water cloudy. Conversely, during stable weather periods, the clarity increases and the greenish hue becomes more visible.

 

Because the site is ecologically sensitive, access may be restricted during heavy rains, wildlife movement periods, or when trail erosion poses safety risks. Kaeng Krachan National Park enforces seasonal management policies to protect both visitors and wildlife. Checking official announcements before departure is essential.

 

From an ecological standpoint, the waterfall functions as a microclimate zone. Continuous moisture creates cooler, humid conditions supporting mosses, ferns, amphibians, and insects. Birds frequently forage in the shaded area near the water. Even though Pha Nam Yod is not large compared to Thailand’s major waterfalls, its ecological contribution to the forest system is significant.

 

The limestone surface is fragile. Repeated stepping on mineral layers can cause irreversible damage. Sunscreen residue, soap, or chemical contaminants introduced into the pool can disturb microbial balance. Sustainable tourism practices such as avoiding climbing on the tiers, refraining from using chemical products near water, and carrying out all waste are critical for long-term preservation.

 

Getting There From the Kaeng Krachan roundabout, take Highway 3301 toward Yang Chum – Nong Plub Road, then connect to Route 3461. Continue approximately 7.1 kilometers, turn left toward the western direction, and drive another 7.6 kilometers to reach the trailhead. Road conditions during the rainy season may be slippery; adequate preparation and time allowance are recommended.

 

 

A: The rainy season to late rainy season offers the fullest water flow and clearest umbrella-shaped layers.

 

A: The 2-kilometer trail is moderate and typically takes about 2 hours round trip depending on conditions.

 

A: Swimming conditions depend on seasonal safety regulations. Visitors should follow park guidelines strictly.

 

A: Yes. The park may close access during heavy rainfall or wildlife activity for safety reasons.

 

A: Proper hiking shoes, drinking water, insect repellent, and checking weather and park announcements before travel are strongly recommended.