Mount Oldoinyo Lengai Treks
Duration
Overview
Trekking Ol’doinyo Lengai
Mount Oldoinyo Lengai, rising approximately 2,880 meters above sea level, stands dramatically above the floor of the East African Rift Valley in northern Tanzania. Its name, meaning “Mountain of God” in the Maa language of the Maasai people, reflects its deep cultural and spiritual significance. The Maasai refer to God as Enkai or Engai and regard this active volcanic mountain as sacred.
Oldoinyo Lengai is the only active carbonatite volcano in the East African Rift Valley. Its lava is scientifically unique. When first expelled, the lava appears dark, but it rapidly reacts with moisture in the air and transforms into a lighter, almost white-colored rock. This unusual characteristic attracts geologists and researchers from around the world.
The climb itself is physically demanding due to the steep slopes and loose volcanic terrain. Although no technical climbing skills are required, strong fitness and determination are essential. The ascent typically begins at night to reach the summit by sunrise, when temperatures are cooler and visibility across the Rift Valley is at its best. At the crater rim, small lava cones and volcanic formations can often be observed.
Oldoinyo Lengai is commonly combined with time at nearby Lake Natron, a striking alkaline lake known for its flamingo populations and dramatic landscape. The surrounding region also offers opportunities for guided walking experiences in remote areas near Ngare Sero, Engaruka, and Loliondo, where wildlife such as zebras, giraffes, and occasionally elephants may be seen under ranger supervision.
This trek is well suited for adventurous travelers seeking a challenging climb, geological uniqueness, and cultural context beyond traditional safari or Kilimanjaro experiences.
Included/Exclude
- Kilimanjaro trekking according to the agreed itinerary
- Professional, English-speaking guide (Wilderness First Responder & CPR certified)
- Proper ration and support of the mountain crew (cook & porters)
- Pre- and post-trek accommodation (2 nights, Bed & Breakfast)
- Airport transfers (arrival & departure)
- All meals on the mountain as per the itinerary (full board)
- Safe drinking water throughout the trek
- All National Park fees, hut/camping fees, crew permits, and VAT
- Fair and sustainable wages for all mountain crew
- Gate transfers
- Complimentary oxygen cylinder (for emergency use)
- Private portable toilet with a dedicated porter
- Use of quality, imported trekking equipment
- International and domestic flights
- Visa fees
- Travel and medical insurance (mandatory – recommendations available)
- Gamow (hyperbaric) bag
- Personal medications
- Tips for porters and mountain crew
- Personal expenses (souvenirs, snacks, etc.)
- Energy foods and beverages, including alcoholic and soft drinks
- Personal hire gear (e.g. trekking poles, sleeping bags, etc.)
- Additional accommodation costs in case of early descent from the mountain
Tour Plan
Drive to Mto Wa Mbu and enter the Great Rift Valley, passing via Engaruka basin and into a semi-desert area hot wild and dusty with extinct volcanoes, Kitumbaine and Gelai off to the right and the Mountain of God “Oldoinyo Lengai” always in front.
Around midday we arrive at Camp on the banks of the Engaresero river, in the afternoon take a trek to the waterfalls hidden in the Western wall of the rift valley.
You will have a short rest at Kamakia camp while waiting for your dinner. Thereafter you will have a nap before been transferred in the mid night by your driver guide to start the climb of Oldoinyo Lengai (approximately 4 hours climb). When you will arrive the peak, you should able to see the lava glowing.
Meal(s) plan: Breakfast, Lunch and Dinner
Enjoy the sunrise and the views up the Rift Valley as far as Kenya and therefore descent and drive to the camp for shower, and late breakfast follows with a total rest. You will have some small walking in the evening on your wish and thereafter retire to Kamakia campsite for dinner and overnight.
Meal(s) plan: Breakfast, Lunch and Dinner
In the morning after breakfast you will have a walking around the Lake Natron with your local guide. Lake Natron one of the major flamingo breeding site in East Africa – en-route visit a Maasai “Boma” village. You will have time to interact with Maasai people and learn their culture and day to day activities.
After having the cultural tour you will be back to the campsite for hot lunch and preparation to drive back to Arusha or Moshi for dinner and overnight at the designated hotel or lodge. Depending with the itinerary you might be transferred to Kilimanjaro International Airport for your flight back home.
Meal(s) plan: Breakfast and Lunch
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Trips can be arranged as private or shared, depending on the package and group size. Private trips offer more flexibility, while shared trips can reduce costs.
Packing depends on the destination and activity. After booking, we provide clear packing guidance to help you prepare properly and comfortably.
Travel insurance is strongly recommended for all travelers. It should cover medical expenses, trip cancellation, and emergency evacuation where applicable.
Yes. Please inform us in advance about any dietary needs or allergies so we can plan accordingly.
Trips may be adjusted for safety reasons due to weather or local conditions. Any necessary changes are communicated clearly, with safety always as the priority.
Our team is available before and during your trip to assist with questions, updates, or support. Contact details are shared upon confirmation.
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