Mae Pan waterfall is a high waterfall on the east side of Doi Inthanon National Park, Chiang Mai province, Thailand. It is believed to be the province's tallest (100 m) and is essentially a thundering fall with little opportunity for a plunge.
If coming from Chiang Mai keep going on highway 1009, which becomes highway 1192, rather than entering the national park itself. It's about 10 km from the main entrance gate on the northern side. Once past this gate the road gets steep, very steep not so much fun for coming back. Apparently not to be used in the wet.
We visited it on a rainy day back in November '06. It's a nice walk. The nearby ranger station has not much to offer. Accommodation and food is possibly better in Mae Chaem or above near the national park entrance.
Scary is the picture below. why would anyone like to do this? The answer can possibly found here, though there's also the mention of a spinal injury ...