THE EASTERN CHIMPANZEES OF KAHUZI-BIEGA NATIONAL PARK

Have you ever heard about the shy, elusive eastern chimpanzees in Kahuzi-Biega National Park? They’re one of the most compelling reasons to visit the Democratic Republic of Congo on a safari.

The eastern chimpanzee (Pan troglodytes schweinfurthii) is one of Africa’s most remarkable primates. You’ll find them in the DRC, Uganda, Rwanda, Burundi, and Tanzania.

We share about 98–99% of our DNA with them, which makes watching them in the wild feel strangely familiar. One of the best places to see them — and help protect them — is Kahuzi-Biega National Park in eastern DRC.

Kahuzi-Biega is a UNESCO World Heritage Site packed with wildlife: eastern lowland gorillas, giant forest hogs, bush elephants, and of course eastern chimpanzees. They’re naturally cautious, so spotting them feels like a real privilege.

The park itself is a mix of montane forests, lowland rainforests, swamps, and lush valleys — perfect chimp habitat and a great place for a Congo safari.

You can watch chimps in the wild here, or visit rescued ones at the nearby Lwiro Chimpanzee Sanctuary. Lwiro takes in orphaned and trafficked chimps, rehabilitates them, and works to return them to the forest.

Here’s a closer look at the eastern chimpanzees of Kahuzi-Biega. 

Interesting Facts About Eastern Chimpanzees in Kahuzi-Biega

• They’re tool users: Chimps pick up sticks, leaves, and stones to get food — fishing for termites, cracking nuts, or soaking up water to drink.
• They live in fluid groups: Their communities use a “fission-fusion” system. A group might be 20 to 150+ chimps, splitting into smaller foraging parties by day and regrouping at night.
• They’re loud: A pant-hoot call can echo a long way through the forest.
• They use trees and ground: Chimps sleep in tree nests but spend much of the day foraging on the forest floor.
• They eat almost anything: Fruit, leaves, seeds, bark, insects, and sometimes small mammals.
• They have predators: Leopards and occasionally lions hunt them, but people are their biggest threat.
• They’re endangered: Habitat loss, poaching, and the bushmeat trade have hit eastern chimpanzees hard in Kahuzi-Biega.

Kahuzi-Biega National Park

The park sits in South Kivu Province, near Bukavu town and Lake Kivu. It’s a UNESCO World Heritage Site with incredible plant and animal diversity.

It covers both lowland and montane forests, climbing up to Mount Kahuzi and Mount Biega — the two peaks the park is named after.

The lowland sector is where you’ll find eastern chimpanzees. The highlands are famous for eastern lowland gorillas, also called Grauer’s gorillas.

Kahuzi-Biega is globally important. It’s the last stronghold for Grauer’s gorillas, and it protects blue monkeys, red-tailed monkeys, olive baboons, giant forest hogs, bush elephants, bongo, leopards, Maclaud’s horseshoe bats, Bosman’s potto, and birds like the African green broadbill, Rockefeller’s sunbird, and Congo peafowl.

Where Do Chimpanzees Live in Kahuzi-Biega?

Eastern chimps stick mainly to the lowland tropical forests. The dense canopy gives them cover, nesting spots, and plenty of food.

You’ll also find them along forest edges, river valleys, and swampy areas where fruit trees are common. They’re quiet and shy, so seeing them takes patience and good guides.

Other Eastern Chimpanzee Habitats in DR Congo and Across Africa

In DR Congo, the Lwiro Chimpanzee Sanctuary near Bukavu is another key site.

Lwiro Chimpanzee Sanctuary

Lwiro rehabilitates orphaned and trafficked chimps, plus other rescued primates and small mammals. Visitors can:

• Help with feeding times
• Volunteer to clean enclosures and assist caregivers
• Learn about rehab and reintroduction work
• Your visit or donation supports community education and conservation around the park.

Other places to see eastern chimps in Africa: 

• Gombe Stream National Park, Tanzania
• Mahale Mountains National Park, Tanzania
• Budongo Forest in Murchison Falls National Park, Uganda
• Kalinzu Forest in Queen Elizabeth National Park, Uganda
• Kibale Forest National Park, Uganda
• Nyungwe Forest National Park, Rwanda
• Bafut Forest, Cameroon

These sites are crucial for research and protecting chimpanzees.

Taxonomy And Eastern Chimpanzee Scientific Name

The eastern chimpanzee is Pan troglodytes schweinfurthii, a subspecies of the common chimpanzee. Some researchers split them into northern and southern groups based on slight differences.  Chimps are in the Hominidae family — our close relatives. The similarities in anatomy, intelligence, and social life are striking.

Eastern Chimpanzee Behavior and Ecology in Kahuzi-Biega

Chimps here show:

• Fission-fusion society: Small groups forage by day, gather at night.
• Life in trees and on the ground: They build nests in trees to sleep and walk the forest floor to feed.
• Tool use: Sticks for termites, stones for nuts, leaves as sponges.
• Hunting: They sometimes hunt small monkeys for food or social reasons.
• They’re also vital seed dispersers, helping the forest regenerate.

 What Eastern Chimpanzees Look Like

Adults weigh 40–65 kg (88–143 lbs). Males can reach 160 cm (63 inches); females are a bit smaller at around 130 cm (51 inches).

They have coarse black hair, bare faces, hands, and feet, and opposable thumbs and big toes for gripping. Their eyes are amber to brown, set in dark sclerae.

How Do They Communicate?

Eastern chimps use:

• Sounds: Pant-hoots, screams, grunts, alarm calls
• Body language: Hand gestures, facial expressions, postures
• Touch: Grooming to build bonds and keep peace

These signals help them coordinate, warn each other, and maintain group ties.

Eastern Chimpanzee Diet: What Do They Eat?

They’re omnivores. Their menu includes:

• Fruits and seeds: figs, guavas, wild bananas
• Leaves and bark: for extra nutrients
• Insects: termites, ants, larvae
• Small animals: birds and mammals, occasionally

They often use tools to reach food and sometimes hunt cooperatively.

Mating Patterns in Kahuzi-Biega

Chimp mating is promiscuous — both males and females have multiple partners. Dominant males usually father more offspring. Females typically have one baby every 4–6 years.

How Can I See Eastern Chimpanzees in Kahuzi-Biega?

The main way is chimpanzee tracking in the lowland forests. It’s not easy — they’re shy and move quietly.

Ranger guides look for footprints, dung, and snapped branches to find them.  Once you find a group, you get one hour to watch them.

No flash photography.  For closer encounters, Lwiro Sanctuary offers guided visits and feeding experiences.

Guidelines for Chimpanzee Watching

• Stay at least 7 meters away
• No direct eye contact or loud noises
• Never feed wild chimps
• Always follow your ranger’s instructions
• Limit visits to one hour to reduce stress and disease risk

Costs for a DR Congo Chimp Watching Safari

Park entry: $25–$50 per day, depending on nationality

Chimpanzee tracking permit: $50–$100

Lwiro Sanctuary visit: donations of $10–$30 are welcome

Guided tours and lodging: vary by hotel or lodge

Best Time to See Eastern Chimpanzees

You can visit year-round, but safety and weather matter. The dry seasons — June to September and December to February — are best. Trails are drier, vegetation is thinner, and tracking is easier.

Where to Stay During Chimpanzee Watching

Budget

Eco-lodges and guesthouses near the park:

• Lwiro Village Guesthouse
• Exodus Hotel Bukavu
• Bush Camp at Kahuzi-Biega NP
• Kahuzi-Biega NP Campsite
• Lulimbi Tented Camp

Mid-Range

Comfortable options near Bukavu or Lake Kivu:

• Hotel Elizabeth Goma
• Hotel Horizon Bukavu
• Coco Lodge
• Lakeside Hotel Bukavu
• Maravilla Kivu Eco Resort

Luxury

Full-service lodges with tours, meals, and transport:

• Lake Kivu Serena Hotel
• L’Orchids Safari Club
• Hotel Begonias Bukavu

Book early, especially in peak season.

How to Get to Kahuzi-Biega to See Chimps

Fly into Kigali International Airport (Rwanda) or Goma Airport (DRC).  Drive from Bukavu town — about 1–2 hours to the park on paved or dirt roads.  You can also enter from Rwanda via the Rusizi border, then drive to the park.  Most tour operators arrange transport, border help, and visas.

Other Attractions in Kahuzi-Biega Besides Chimps

The park has much more than primates:

• Eastern Lowland Gorillas: The main draw — found only here.
• Mount Kahuzi and Mount Biega: Two extinct volcanoes with tough hikes and huge views.
• Birds: Over 350 species, including Albertine Rift endemics like the African green broadbill and Congo peafowl.
• Other primates: Red-tailed monkeys, blue monkeys, olive baboons, Bosman’s potto.
• Unique mammals: Bush elephants, bongos, leopards, Maclaud’s horseshoe bat.
• Culture: Visit nearby villages and plantations to meet communities in South Kivu. READ MORE!

Other Activities in Kahuzi-Biega Besides Chimp Watching

• Eastern Lowland Gorilla Trekking: The park’s signature experience — spend an hour with Grauer’s gorillas.
• Bird Watching: A paradise with 350+ species, including rarities.
• Mountain Climbing: Summit Mount Kahuzi or Mount Biega.
• Nature Walks and Hiking: Trails through rainforest, swamps, and bamboo zones. Learn about medicinal plants and spot wildlife.
• Camping: Sleep under the stars at Kahuzi-Biega Campsite or Lulimbi Tented Camp.
• Wildlife Photography: Capture gorillas, chimps, and dramatic landscapes.
• Community Tours: Explore Bukavu or Lake Kivu villages, try local food, and support sustainable tourism. READ MORE!

What to Pack for a Congo Chimpanzee Watching Tour

• Lightweight long-sleeve shirts and pants
• Sturdy hiking boots and good socks
• Raincoat and waterproof bags
• Binoculars and camera
• Insect repellent and sunscreen
• Water bottle and snacks
• Talk to your Congo travel agent about packing light to avoid extra fees.

Threats to Eastern Chimpanzees in Kahuzi-Biega

Serious risks include:

• Habitat loss from logging, tea farms, and agriculture
• Poaching for bushmeat or the pet trade
• Disease passed from humans
• Political instability that weakens protection

Conservation Status of Eastern Chimpanzees in Kahuzi-Biega

The IUCN lists eastern chimps as Endangered. To protect them, the park runs:

• Anti-poaching patrols
• Community education programs
• Research and monitoring
• Support for Lwiro Chimpanzee Rehabilitation Center

Your visit and park fees directly fund these efforts, helping protect a vital chimp population in this UNESCO site.

Common Questions About Eastern Chimpanzees in Kahuzi-Biega

1. Is Congo safe?

Congo has had instability, but Kahuzi-Biega and Bukavu are safe with licensed operators. ICCN rangers ensure visitor security. Many travelers fly into Kigali, which is very safe, then cross by road.

2. Why are chimpanzees endangered?

Habitat loss, poaching, and disease are the main reasons. Logging, farming, bushmeat hunting, and the illegal pet trade have orphaned many chimps. Sanctuaries like Lwiro help by rescuing and rehabilitating them.

3. How many chimpanzees live in Kahuzi-Biega?

Exact numbers are hard to get because they’re elusive. Researchers estimate several hundred in the park’s forests. Roughly 4,926 eastern chimps live in Kahuzi-Biega and the surrounding OCR area. The park also protects Grauer’s gorillas, elephants, forest hogs, and rare birds.

4. What’s the main activity in Kahuzi-Biega?

Eastern lowland gorilla trekking is the highlight — an hour with habituated Grauer’s gorillas. Chimp tracking, birding, and guided walks are also popular.

5. What is the Lwiro Chimpanzee Sanctuary?

Lwiro rescues orphaned chimps and other wildlife from poaching and trafficking. Visitors can see rehab work, research, and education projects. It’s a key conservation site near Kahuzi-Biega.

Kahuzi-Biega National Park protects eastern chimpanzees in misty montane and lowland forests, alongside Grauer’s gorillas and rare endemic species. Trek in to watch their tool use, complex social bonds, and forest life up close.  Ready to plan a DR Congo chimpanzee watching tour? Call or email us, and we’ll put together the right itinerary for you.