Khao Yai tree flower

At Khao Yai, the temperature is delightful (between 17º & 21ºC). They can grow many kinds of fruits : strawberries, pomelos, guavas, pomegranates.
They also have many varieties of orchids.
I wish I knew the name of the flower on the photo. I grows on a tree and looks really nice.
At the National Park, there are many varieties of animals: many birds of course, some like hornbills; but they also have elephants, bears, tigers, gibbons, wild dogs or cats, otters, civets, snakes. Today, I only saw two varieties of deer, bands of macaques and one huge monitor lizard.