Situated in southwest Uganda and established in 1991, Bwindi Impenetrable National Park is roughly 330 km² (128 mi²) and is part of the Bwindi Impenetrable Forest. Like Volcanoes National Park, Bwindi’s main attraction is the mountain gorilla. It is estimated that around 300 mountain gorillas live in the lush hills within the park. Bwindi is also home to several other species of primate, including the following: Blue Monkey, Black and White Colobus Monkey, baboon, chimpanzee and the Red-tailed Monkey. The park is also a birdwatchers’ paradise, with several hundred species of birds found here and over 200 species of butterfly.
The trek to see the gorillas can take several hours and consists of hiking uphill through dense rain forest foliage such as bamboo and wild celery. Due to the high levels of precipitation, the ground is often wet and slippery and sturdy hiking boots and full-length trousers are strongly recommended.
Due to the primates' susceptibility to human viruses, such as the common cold, gorilla tours are strictly regulated. Guests are permitted only one hour of viewing and are required to remain within a certain distance of them. Visitors who are ill or who are recovering from an illness must not go on safari and, in most cases, will be refunded 100% of their fees when they properly notify their tour operators.
Bwindi's seasons are similar to those of Volcanoes, with distinct wet and dry seasons. The months of March, April and November bring heavy rains to the park, which make trekking in the steep hills of Bwindi more difficult, and are the low seasons. Lower-priced trekking permits can be obtained during these three months only. The drier months of June through August are also the cooler months, which make the trekking slightly less strenuous and the humid climate more tolerable.