Most common mammals in the park with almost guaranteed sighting during couple of days trips are four deer species (Sambar deer, barking deer, Eld's deer and Indian hog deer), long-tailed macaque, Asian palm civet and boar. There is quite good chance to spot bantengs and elephants on the first watchtower 7 km east of headquarters. Huai Kha Khaeng is probably the best place in Thailand to see bantengs, another good location is Kui Buri National Park. Leopards are seen relatively often, but one may need up to weeks patient search to eventually see one. Tigers are relatively common, but sighting is quite rare. Tiger pawn prints can be seen along the trails and dirt roads regularly.