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Karis Expeditions
Destination · Western Circuit

Mahale Mountains National Park

A steep chain of forested mountains falling directly into Lake Tanganyika - home to one of the world's largest and most-studied populations of wild chimpanzees.

Size
1,613 km²
Chimpanzees
~1,000 wild
Habituated group
Mimikire (M-group)
Best months
Jul-Oct
Introduction

Guide to Mahale Mountains National Park

Mahale is the finest chimpanzee trekking in East Africa and one of the great remote wilderness experiences on the continent. The Mimikire community - habituated by Japanese primatologists starting in 1965 and studied continuously ever since - numbers around 60 individuals, and daily encounters last approximately one hour in the forest under the direction of park rangers.

The setting is extraordinary. Mahale's mountains rise directly out of Lake Tanganyika, the world's second-deepest freshwater lake, and the park's beach is composed of white quartz sand fringed by tropical forest. Camps are reachable only by dhow from the airstrip - there are no roads inside the park.

Why visit Mahale

For the chimpanzees, and for the isolation. Mahale is the most remote safari destination in Tanzania - two scheduled flights per week connect Arusha to Mahale via Kigoma, and even then most guests charter. Once you arrive, the park's combination of primates, rainforest, and freshwater beach delivers an experience unlike anywhere else on the country's classic safari circuits.

Wildlife

The Mimikire (M-group) is the only habituated community, with tracking on foot by park rangers who locate them via radio-collared individuals. Beyond the chimps, Mahale holds red colobus, red-tailed monkey, blue monkey, yellow baboon, giant forest squirrel, bushpig and duiker. Leopard is present but rarely seen. The lake holds over 250 endemic cichlid species and offers exceptional snorkelling from the beach.

Activities

Chimpanzee trekking with park rangers. Treks range from 1 hour to 5+ hours depending on the community's daily location - the M-group ranges over about 25 square kilometres.

Snorkelling the reef in front of camp - Lake Tanganyika holds one of the world's most diverse freshwater fish populations.

Kayaking, fishing (catch-and-release), forest walks, dhow sunset cruises are all standard from the two operating camps.

Getting there

Fly-in only. Safari Air Link operates scheduled charters from Arusha (via Katavi) 2-3 times per week in season, with a total flight time of approximately 4.5 hours. From the airstrip, a 30-minute dhow transfer to Greystoke or Nomad's Mahale Mountains.

Travel tips

Book well ahead. Only two camps operate (Greystoke Mahale and Nomad Mahale Mountains), together taking about 25 guests at a time. 12+ months lead time is normal.

Stay four nights minimum. Chimpanzee tracking is weather- and community-dependent; four nights gives you three reliable tracking days.

Combine with Katavi. The classic Western Circuit is Katavi + Mahale, 6-7 nights, flying between the two.

In the field
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When to visit

Best time and month-by-month weather

Mahale operates May to March, with peak season July-October when the chimpanzees are lower down the mountain and easier to locate. April through mid-May is closed for the long rains.

MonthHighLowRainIn the field
January27°C20°C150 mmGreen season, chimps often high on mountain.
February27°C20°C140 mmSimilar; workable.
March27°C20°C180 mmLate green season, wet.
April26°C19°C220 mmClosed.
May26°C18°C100 mmReopening late month.
June26°C16°C10 mmDry season begins; chimps descending.
July26°C15°C5 mmExcellent tracking conditions.
August27°C15°C5 mmPeak season; reliable tracking.
September28°C16°C10 mmBest month; chimps low, weather perfect.
October29°C17°C40 mmWarming; tracking still excellent.
November28°C19°C100 mmFirst rains; chimps ranging higher.
December27°C20°C140 mmGreen, festive demand.
Where to stay

Curated camps and lodges

Only two camps operate. Both are exceptional and complement each other in style.

Ultra-Luxury

Both camps sit at the top of the East African luxury tier.

  • Greystoke Mahale (Nomad) - 6 open-fronted bandas of driftwood on the beach; iconic
  • Mbali Mbali Mahale - 8 tented rooms; more affordable, similar beach setting
Practical

Packing list for this destination

  • Sturdy hiking shoes with grip - trails can be steep and slippery
  • Long trousers and long-sleeved shirt for the forest
  • Rain jacket year-round; light layer for evenings
  • Face mask (chimpanzee tracking requires one for their protection)
  • Swimwear and reef shoes for the lake
  • Small daypack, water bottle, camera with wide-zoom (no flash allowed with chimps)
FAQ

Mahale Mountains National Park - your questions, answered

No. The Mimikire community is habituated and tracked daily by researchers, but trekking is weather- and location-dependent. Over the full season the success rate is around 95%; over 4 nights you can expect to see chimps on 3 of the days.
The park permits chimpanzee tracking from age 12. Younger children can enjoy the beach, kayaking and snorkelling but cannot enter the forest to see the chimps.
Design your journey

Let's plan your Mahale Mountains National Park safari.

Every Karis journey is designed one traveller at a time by our Arusha-based team. Share a few details and a specialist will send a hand-crafted proposal within 24 hours.