Chiang Mai has some rather large and photogenic waterfalls, well worth a visit. Here we list the six best-known waterfalls in Chiang Mai. Some of them have pools or streams where it is possible to take a swim in the refreshingly cool water. The Chiang Mai waterfalls are at their best from June to November, with September and October being the best months, when the water level is high and the forest is at its greenest.