Both Wildlife Sanctuaries, Huai Kha Khaeng and Thung Yai Naresuan, are the most important protected forests of mainland Southeast Asia.
Yesterday in my last of many visits to Huai Kha Khaeng I had an amazing wildlife watching day at the watchtower: one leopard, 30+ bantengs, many deers, one Asiatic Black Bear, two jackals, wild boars, many green peacocks and so on.
This is the only true wilderness in Thailand.

my short visit to Huai Ka Kaeng wildlife sanctuary was made in the peak of summer in April. it was extremely hot. most of the trees along the way from main road to the park's entrance fall leaves entirely. there were evidences of bush fire every where. but once we really got into the area where the office of rangers were, the scenery became green. the temperature was at lease a few degrees cooler. i like the landscape here that's easy to walk, flat, shady with large trees and dry streams. upon arrival, i was greeted with colorful butterfly lizards running on the ground. there were samba deers grazing under a tree. macaques were hanging on trees. i also saw my fav bird, racquet tailed drongo, black bird with unique extra long tail sitting on a tree. this sighting really made my day.
this sanctuary really deserves world heritage status.
i must come back, probably in the green season.