The Karisimbi gorilla group, also known as Susa B, occupies the upper slopes of Mount Karisimbi, the tallest peak in Rwanda and the second highest of the eight Virunga volcanoes. It’s one of 12 habituated gorilla families in Volcanoes National Park, and one of the most sought-after treks in the park.
How Karisimbi Was Formed
The group formed in 2009 when silverback Nyagakangaga split from the original Susa family, taking 13 individuals with him to form what was initially called Susa B. In 2010, the group was renamed Karisimbi, reflecting its settlement on the mountain’s higher slopes.
Family Structure Today
Karisimbi once had 15 members before another silverback left with several individuals to form a separate family. The group now has 11 members: 1 adult female, 4 silverbacks, 1 blackback, and 2 infants, led by dominant silverback Nyagakangaga, known for prioritizing peace and stability within the group.
Trekking the Karisimbi Family
Reaching Karisimbi means hiking to the higher slopes of Mount Karisimbi, moving through rugged bamboo forest trails, navigating thorny vegetation, and relying on tree branches for support along steeper sections. It’s a physically demanding trek that effectively combines gorilla trekking with part of the Mount Karisimbi climbing experience in a single outing.
Combining Karisimbi With Other Rwanda Activities
A Rwanda gorilla safari built around the Karisimbi family pairs well with a cultural visit to the Iby’Iwacu Cultural Village, golden monkey trekking, a stop at the Musanze Caves, or a hike up one of Volcanoes National Park’s other volcanoes.
For trekkers who want gorilla trekking and a real mountain climb in one outing, Karisimbi is one of the more physically rewarding families to visit in Volcanoes National Park. Book your gorilla trekking permit with our team today, and we’ll help you plan the trek alongside the rest of your Rwanda itinerary.







