The mist-covered hillsides of Bwindi’s ‘impenetrable’ forest are home to over half the world's population of wild mountain gorillas. You'll depart in the early hours with a seasoned ranger to trek the rugged terrain in search of one of 19 habituated family groups, and once found, spend a precious hour watching them. While the hike can be gruelling, the sight of a fully-grown silverback emerging from the vines or the rambunctious baby gorillas playing close to their mothers is one you won't forget. The gorillas are well-hidden from the world and you'll have the chance to see them just as they are when no one's watching. There is also the option of a habituation permit, where you'll spend up to four hours with the gorillas. Trekking can be done year-round, but the ideal conditions are probably from June to September and December to February when the park is drier and humidity is lower. Trekking in the middle months does, however, attract a lower permit price. The choice is yours!