Mount Ol Doinyo Lengai

  • Overview
  • Itinerary
  • Inclusion
  • Trekking gear
  • Online Booking

Ol’Doinyo Lengai means “The Mountain of God” in the Maasai language. Since the past ancestors, the Holly Lengai has been used by Maasai for their prayer to their GOD known as NGAI.

Standing at 2,878 meters above the Soda Ash Lake Natron, the Mountain of GOD is famous to the Maasai community that inhabits the area. Ol’Doinyo Lengai Mountain is situated in the Ngorongoro highlands and the African Rift valley about 230 kilometers Northwest of Arusha, Tanzania.

The summit of this strato-volcano is 2962 meters (9,718 feet) above sea level. It affords direct views into the caldera of Tanzania’s only officially-certified active volcano, and the world’s only carbonatite volcano. The records of eruptions have been maintained since 1883, the largest of which deposited ash 100km away in Loliondo on the Kenyan border to the northwest.

It is located in northern Tanzania lying just south of Lake Natron in the Rift Valley. It is in the heart of Maasai country and locally regarded as a sacred mountain. Looking north from its summit crater, the hot barren salt flats of Lake Natron stretch into the distance. To the south stretch the crater Highlands and the Ngorongoro Game Reserve. The eastern horizons are dominated by Kilimanjaro. To the west the forested escarpments and hills comprising the western slopes of the Rift Valley.

It is possible to walk across the crater floor. The ascent of Ol’Doinyo Lengai is demanding on account of the daytime heat, lack of water, steep and unsuitable slopes of ash and crumbly rocks, and considerable height gain. Normally you can start ascending to the summit early in the morning and reach the summit at sunrise.

A Short and a warm jacket are suitable for the ascent, also long trousers are good as the summit before dawn can be cold. The access route from the North West allows an early descent to be made from the summit in the morning shadow.

Ol’Doinyo Lengai is the only active volcano in the world that erupts natrocarbonatite lava which is cooler than other lavas about (510 degrees C) compare to the temperatures of basaltic lavas (1,100 degrees C) with less silicon.
The Mountain frequently does minor eruptions and form cone-like structures to its crater base. Every seven years Lengai erupts and plumes of smoke billow out of the crater.

While on the summit of Mountain Ol’Doinyo Lengai one can sight clearly the Soda Lake Natron which accommodates and consist of good nesting sites for different bird species especially the Flamingos, pelicans, and geese more than 350 different types are recorded to date.


Unlike the other two highest Mountains, Ol’Doinyo Lengai takes about six to seven hours to the summit crater. Also, the Mountain is an ideal place for a walking safari escorted by the Maasai guides with weapons on which the tourists can sight wild animals like the Olive baboon, Vervet monkey, Hyena, Lion, Leopard, Jackal, Grant’s gazelle, Impala, and Zebra, and also monitor lizard.
The nearby are the Maasai Villages that give you a chance to interact with the indigenous learn their cultures, taboos, and traditions.


Depart Arusha after breakfast and drive to Lake Natron. Enjoy a picnic lunch and visit Ngaresero Waterfalls which descend from the Nguruman Escarpment west of Lake Natron. Dinner and overnight at Tented camp-FB


After a delicious breakfast drive to Lake Natron, an alkaline lake that serves as the principal breeding site for three-quarters of the world’s population of Lesser Flamingos. After a tour and activities at Lake Natron we will return to camp for some much needed rest prior to our trek tonight. Just before midnight we will begin our trek.


Escorted by an experienced Maasai guide, your climb will take 5 to 6 hours whereby you will reach the summit in time to witness the amazing sunrise as it illuminates the Great Rift Valley. After exploring the peak you will head back down the mountain to the base where your driver will be waiting for you to take you back to the camp in time much needed rest. We depart for Arusha before lunch and enjoy a picnic enroute. We arrive in Arusha in the early evening where you journey ends upon arrival.

NB: This program can be customized and mixed with Wildlife Safaris to Serengeti, Ngorongoro, Lake Manyara, and Tarangire National Parks.

Please, do not hesitate to contact us at for our current prices and more information about this trip!


  • 2 transfers from moshi to marangu park gate.
  • 3 meals per day, vegetarian/non-vegetarian.
  • 5 days kilimanjaro trek.
  • 4 nights accommodation in huts.
  • 2 nights hotel accommodation bed and breakfast in moshi.
  • All park entrance fees and government levies.
  • English speaking mountain guide and assistant.
  • Porters – minimum 2 per client.


  • Flights
  • Items of a personal nature
  • Laundry services
  • A doctor for the group
  • Tips to mountain crew

For the Head

Sun Hat, Bandana, Wool Hat,  Sunglasses,  Sunscreen (SPF 25+), Lip Balm (SPF 25+)

Clothes (No Cotton)    

Synthetic base layer (1 pc) , Wool or synthetic layer (1 pc)Wool or fleece sweaterWind/Water-proof jacket, Convertible hiking pants, Synthetic or wool pants for layering, Water-Proof Pants, Gloves or mittens.

For the Feet

Thin sock liners (1), Wool hiking socks (1), Good- broken-in hiking boots, Gaiters (knee lengthy is better), Tennis shoes or sandals (for camp)

For Sleeping

Zero degree sleeping bag, Sleeping mattress, Inflatable pillow (optional)

For Hiking

Day pack (no larger than 2,200cu), Water bladder 100oz/3ltr, or bottle, Rain cover for pack, Headlamp, Extra batteries, Energy bars/gels, , walking pole/sticks (1 piece or a pair).

Personal Items

Toiletries, Small first aid kit, Small towel, Diamox for altitude sickness, Malaria pills, Wet wipes, Bug Spray, Camera, Flashlight/torch, Batteries Cash for tipping, etc.


    If you would like to climb another mountain inclusively or you wish to go on safari or have questions about variations of this itinerary, please, contact us at to arrange a private climb or safari based on your specific desire.