Bo Nam Ron

Bo Nam Ron is the natural hot spring beside the old Chiang Rai-Chiang Mai highway in Wiang Pa Pao district, better known locally as Mae Khachan hot springs — roughly the halfway point on the road between the two cities. Entry is free, and the springs are the reason drivers pull over: source pools reach around 90°C, hot enough to hard-boil an egg in a few minutes, which is exactly what most visitors do here.

A handful of pools sit close together at different temperatures. The hottest, nearest the road, are for cooking rather than bathing — vendors sell baskets of chicken and quail eggs to lower in on strings, ready in three to five minutes. Cooler pools and shallow troughs further back are set up for soaking feet rather than full immersion. Steam rises visibly off the hottest pools most of the day, and the sulphur smell typical of geothermal water is noticeable but not overwhelming. Basic facilities — food stalls, a coffee stand, a souvenir shop — cluster around the parking area, reflecting its role as a driving-route rest stop rather than a spa destination.

It’s a functional stop rather than a scenic one: most people are here 20-30 minutes on their way between Chiang Rai and Chiang Mai, not settling in for an afternoon. Traffic on Highway 118 means it can get busy around midday with tour vans and road-trippers stretching their legs.

Insider Tip: Bring your own eggs if you’re passing a market earlier in the drive — vendors on site sell them too, but at a markup over what you’d pay in town.

The springs sit directly on the Chiang Rai-Chiang Mai road (Highway 118) in Wiang Pa Pao district, easy to spot from signage and the parked cars of other travellers; a car, motorbike, or any bus running this route passes right by. If you’re already stopping in Wiang Pa Pao, Khun Chae National Park and its waterfall are a short detour into the same district for a longer break from the drive.