The Wachirathan Waterfall (pronounced "wah-chee-rah-TAHN"; also spelled Vachirathan) was the second major waterfall on the way up to the summit of Doi Inthanon. Of all the waterfalls we saw in Doi Inthanon National Park, we thought this one had the most power and spray, and it was probably the most impressive of the lot on the mountain's slopes.