The legend behind the tunnels
Wat Umong Suan Phutthatham — its full name translates roughly to "tunnel temple, garden of the Buddha's teachings" — was founded in the late 13th century under King Mangrai, the same king who founded Chiang Mai itself in 1296. The most-told account behind its unusual tunnel system centres on a monk named Thera Chan (also written as Jan), a highly respected teacher the king regularly consulted, who preferred to meditate deep in the forest, undisturbed. Different versions of the story diverge on the specifics — some describe him simply as a monk who valued solitude and had grown harder to reach as the city grew around him; other, more colourful local retellings describe him more bluntly as eccentric or unwell, prone to wandering off into the forest at inconvenient moments, including when the king needed his counsel. Whichever version you prefer, the practical outcome was the same: King Mangrai ordered a system of tunnels dug into an artificial mound just outside the city walls, giving the monk somewhere to meditate in genuine seclusion while remaining close enough to be found when needed. The tunnels were lined with brick, plastered, and decorated with Buddhist murals, with small shrine niches built into the walls along the way.
What survives today
The tunnels themselves are still the main draw — dim, cool, and quiet by design, since their original purpose was specifically to shut out the noise and distraction of the world above. Several Buddha images sit in niches along the passageways, softly lit, and most visitors walk the full loop in a few unhurried minutes. Above the tunnels, a short naga-flanked staircase leads up to a platform where a large, Bagan-style bell-shaped chedi sits among flame and tamarind trees, alongside an old bell.
The grounds beyond the tunnels
Wat Umong's roughly 15-acre forested grounds are as much a part of the experience as the tunnels themselves — a genuinely different pace from any of the Old City temples. Look out for:
- A collection of broken and headless Buddha images, dating roughly to the 15th and 16th centuries, gathered from abandoned temples in Phayao province in the late 1960s and displayed near the tunnel entrance — a deliberately unrestored, weathered counterpoint to the polished golden images seen elsewhere in the city.
- A small lake with resident turtles, fish and ducks, a popular quiet spot to sit.
- "Talking trees" — signs bearing short Buddhist teachings and aphorisms, tied to tree trunks throughout the grounds, meant to be read slowly as you wander rather than absorbed all at once.
- Free-roaming deer, which monks at the temple are known to feed, adding to the sense of the grounds functioning as much as a nature reserve as a religious site.
Why it feels so different from the Old City temples
Wat Umong was conceived from the outset as a forest monastery — a deliberate retreat from the city rather than a monument built to be seen within it, which shows in everything from its wooded setting to the hushed acoustics of the tunnels themselves. If Doi Suthep, Wat Chedi Luang and Wat Phra Singh represent Chiang Mai's temples as civic and royal monuments, Wat Umong represents the other tradition running alongside it: forest Buddhism, oriented around meditation and retreat rather than ceremony and display. It's a genuinely useful counterpoint to visit on the same trip as the more monumental temples, precisely because it's built around a different idea of what a temple is for.
Visiting practicalities
- Location: southwest of the Old City, near Chiang Mai University, on the way toward Doi Suthep — easy to combine with a wider half-day covering that side of the city.
- Bring a torch/phone light: the tunnels are illuminated but genuinely dim in places; a phone flashlight helps if you want to look closely at the older shrine details.
- Pace: this is a slow-down temple, not a checklist stop — budget more time than the tunnels alone would suggest, and use the grounds themselves as part of the visit.
- Meditation: the temple runs a genuine meditation centre with classes and Dhamma talks for visitors wanting more than a walk-through — ask at the entrance for the current schedule.
Standard temple etiquette applies throughout the grounds: shoulders and knees covered, shoes off before entering shrine areas. See our full temple etiquette guide.