Tham Phra

Tham Phra is a limestone cave shrine beside the Kok River in Chiang Rai’s Mae Yao subdistrict, where villagers built a Buddha image among stalactites and stalagmites that formed over a long span of time. Entry is free, and the chamber stays noticeably cooler than the approach trail.

Inside the Cave

The cave sits inside a limestone hill roughly 800 metres high on the Kok River’s bank. Past the entrance, the main chamber holds the Buddha image against a backdrop of natural rock formations — some stalactites hang low enough to touch, though visitors are asked not to. Bats live in the darker recesses further back, and the drop in temperature is immediate once you’re a few metres inside.

The same hill holds three more named caves — Chang Luang (elephant-trunk), Lom (wind) and Wai (rattan) — but Tham Phra, with its Buddha image, is the one on the TAT listing and the one local caretakers maintain.

Atmosphere & Timing

King Rama VII stopped at Tham Phra in January 1926 during a royal visit to Chiang Rai, and a line of resident monks has cared for the site since — clearing the approach, tending the Buddha image, and keeping watch over the formations. There’s no ticket booth or fixed schedule; a caretaker from the village is typically around during daylight hours to unlock the gate.

Watch out: the cave isn’t lit, and the floor near the entrance can be wet and uneven after rain. Bats overhead mean the air near the back can carry a faint guano smell — not unpleasant, but worth knowing before you commit to the narrower sections.

Practical Information

Insider Tip: bring your own flashlight or headlamp rather than relying on the caretaker’s — the light near the Buddha image is often just a single bulb, and the stalactite detail further in is easy to miss in the dark.

Tham Phra is reached by road from Chiang Rai town, a short drive northwest along the Kok River in the same Mae Yao subdistrict as Wat Huai Pla Kang and its giant white Guanyin statue. View on Google Maps. The Blue Temple is a similarly short drive away, on the other side of the Kok River.