Doi Inthanon mountain complex is beautiful and fascinating in nature. There is plenty of wildlife to watch. Doi Inthanon National Astronomical Research Institute of Thailand also. The observatory is the largest in ASEAN. At the lowest temperature or cold frost usually occurs. Top general area of grass on the hill. Which is pretty good, it's exciting and I want to experience cold weather. I want the sun to shine out beautifully, and at night I would lie there watching the stars. And this is why I want to go here most