Sai Rung Waterfall, also locally known as “Pak Weep Waterfall,” is one of the charming natural attractions in the Khao Lak area of Phang Nga Province. Although it is not a large waterfall, it stands out for its dramatic rocky cliff where water gently cascades down in layers. During the rainy season, the water flow becomes stronger and spreads across the rock face, creating a more impressive and lively scene.

The area around the waterfall is surrounded by lush tropical rainforest, providing plenty of shade and a relaxing atmosphere. The sounds of birds, insects, and flowing water create a peaceful natural setting that allows visitors to unwind and reconnect with nature.

One of the reasons Sai Rung Waterfall is popular among travelers is its easy accessibility. It is located only a few minutes from the main Phetkasem Road and the hotel areas of Khao Lak. The walking path from the parking area to the waterfall is short and relatively flat, making it accessible for visitors of all ages.

At the base of the waterfall lies a clear natural pool that is not too deep, making it suitable for swimming and cooling off. Visitors can also relax on the large rocks near the water, enjoy a picnic, or simply sit and take in the fresh forest air.

The name “Sai Rung,” meaning “rainbow,” comes from the fine mist created when the water hits the rocks. When sunlight shines through the mist at the right angle, a small rainbow can often be seen forming above the water, adding a magical touch to the scenery. Visiting Sai Rung Waterfall is therefore a wonderful addition to a Khao Lak trip, combining the beauty of the sea with the tranquility of the rainforest.

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How to Get There

• By Car: From Khao Lak, take Phetkasem Road heading east toward Takua Pa. Look for the sign for Sai Rung Waterfall or Pak Weep Beach, then turn right onto a smaller road. Continue driving for about 3–4 kilometers to reach the parking area near the waterfall.

• By Public Transport: Visitors can rent a motorbike in Khao Lak or hire a local taxi or songthaew (shared pickup truck taxi) to reach the waterfall easily.

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Travel Tips

• The best time to visit is in the morning or early afternoon, when sunlight may create a visible rainbow in the waterfall mist. The ideal months to visit are May to December, when the water flow is strongest.

• Recommended activities include swimming in the natural pool, photographing the waterfall cascading down the cliff, and relaxing in the peaceful rainforest surroundings.

• Wear non-slip shoes if you plan to walk on the rocks, and bring a change of clothes if you intend to swim.

• Nearby attractions include Pak Weep Beach, Khao Lak, and bamboo rafting at Wang Kiang Koo.

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Entrance Fee:

• Free admission (a small parking fee may apply).

Opening Hours:

• Open daily 08:00 – 17:00.