Thailand's tallest mountain, Doi Inthanon, is home to some of the most spectacular waterfalls, landscapes and cultures in the entire country. Situated just a 90 minutes from Chiang Mai, the Doi Inthanon National Park is a popular place for locals to venture for the day or to camp up in the mountains. With sensational temples, soaring cascades, hiking trails and a welcoming Karen hill tribe village serving up locally-grown coffee and fruits, it's easily one of the best places to visit in Thailand. Yet for some reason it's often skipped by visitors in Chiang Mai province, who tend to focus more on the awesome things to do in the city, or other famous spots in northern Thailand such as Pai and Chiang Rai. There are tons of photo opportunities in this national park, I've selected a few I consider the best spots, starting with the Waterfalls. Wachirathan Waterfall should definitely be on your list. Best time to visit is during the rainy season of course, and around 10AM to get the best light and possible rainbows. The waterfall is so powerful and you get so close, that it's pretty impossible to stay dry, so dress accordingly.