The first part of my wildlife safari tour to Khao Yai National Park.in which we saw hornbills (Great Hornbill and Oriental Pied Hornbill), gibbons (Whitehanded Gibbon), and macaque monkeys. We also went to Thamsilong Cave Temple and saw millions of bats emerge out of a bat cave which was amazing. Khao National Park is a place that not as many tourists go to compared to other places in Thailand. II is an absolutely amazing place, with some of the best nature in Thailand, and probably the best place to see wildlife in Thailand and maybe in all of southeast Asia. My guide Ghaan was excellent, she was very knowledgeable and great at spotting wildlife.
The best place to stay at night while doing a day tour in Khao Yai is Pak Chong, an authentic town near the park. The tour company that I booked was Tontan Tours.