The Mae Kachan Hot Spring is characterized by natural geothermal pools where underground heat raises water temperatures to around 90 °C, hot enough to boil eggs. Small roadside stores line the area, offering baskets of eggs specifically for this purpose, allowing visitors to lower them into the bubbling pools and watch steam rise as they cook. The steady heat, mineral scent, and constant movement of the water create a vivid introduction to the natural forces that shape northern Thailand.