The water source is a natural limestone spring that maintains a consistent temperature throughout the year.
The emerald color of the water is caused by the refraction of sunlight against high calcium carbonate deposits.
The arboretum serves as a conservation area for several native species of tropical hardwoods.
Unlike typical monsoon-fed waterfalls, this spring flow remains active during the dry season.
Wangkanluang Arboretum is a botanical garden in Lopburi Province known for its natural limestone waterfall and crystal-clear turquoise swimming pool. The park features a small cascade originating from a natural spring, which flows into a series of tiered basins suitable for wading and swimming. The surrounding area consists of lush, shaded woodland populated by diverse flora and towering trees. Wooden walkways and bridges span the water, providing access to different vantage points along the spring-fed stream. The pool maintains a distinct emerald hue due to the high mineral content of the spring water. Visitors frequently utilize the rocky shorelines for picnicking under the dense tree canopy.
The wooden footbridge overlooking the main tiered pool basin.
Bring water shoes, as the limestone rocks in the pool can be slippery and sharp.
Visit during the weekday morning to secure a spot under the shaded trees before local crowds arrive.
Pack your own food and drinks as dining options on-site are limited.
Avoid visiting immediately after heavy rainfall, as the water can become cloudy with sediment runoff.
Modest swimwear is expected in respect of local cultural norms; keep noise levels low in the wooded areas.
