Keep an eye out for wildlife while exploring Phong Nha-Ke Bang National Park and its surroundings. While larger mammals are elusive, you have good chances of spotting various bird species, butterflies, and primates like macaques, especially if you venture into quieter areas of the park or take early morning walks/boat trips.

The park is a biodiversity hotspot, and lucky visitors might even glimpse langurs (though the Cat Ba langur is specific to Cat Ba). Patience and quiet observation increase your chances of memorable wildlife encounters in Phong Nha.