Masai Mara National Reserve As you crouch a few feet away from a massive silverback in the lush environs of the Bwindi Impenetrable National Park, you’re filled with awe, wonder, and just a tinge of fear as an adorable baby gorilla clambers all over the giant adult. This is only one of the thrilling moments you’re likely to experience on your primate safari vacation in Uganda’s southernmost reserve. Standing on the edge of the Albertine Rift Valley, Bwindi is known for the amazing biodiversity of its rainforests, which date back more than 25,000 years, making them possibly the oldest in the world. This conservation area received gazetted status as a national park in 1991, earning the distinction of UNESCO Natural World Heritage Site in 1994.