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Climb Oldoinyo Lengai: Unique Volcano Adventure in Tanzania

  • Age restriction: 16+ years old for Oldoinyo Lengai treks. Lake Natron has no age restriction.
  • Difficulty level: High fitness level required. Very steep and challenging ascent over loose volcanic ash and rock. Not recommended for beginners.
  • Scenery: Sunrise views over the Rift Valley, salt flats, and dramatic volcanic landscapes near Lake Natron.
  • Price: From Custom per person (only customized tours available for this route),* see all prices
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Overview

Oldoinyo Lengai: 'mountain of God'

Climb Oldoinyo Lengai, known as the “Mountain of God” by the Maasai, is an active volcano that towers over northern Tanzania. It’s the only volcano in the world that erupts carbonatite lava, making it a rare and fascinating destination for adventure seekers.

The climb to the summit is a unique overnight hike. The trail is steep and covered in loose volcanic ash, which makes it a tough but rewarding challenge. At the top, you’ll be greeted by a stunning sunrise and panoramic views of endless plains, the shimmering salt flats of Lake Natron, and the vast Great Rift Valley.

Oldoinyo Lengai is more than just a geological wonder it’s also a sacred site for the Maasai people. This adds deep cultural meaning to the experience, making the journey not just about the views, but also about connection and respect for the land.

Whether you’re drawn by nature, challenge, or spiritual meaning, this mountain offers something truly unforgettable.

Route itinerary options

Click to expand the various itinerary options for this route. Itineraries indicated as * Recommended * are chosen for their duration, acclimatization and good route profile.

Day 1 - Lake Natron - Climb Oldoinyo Lengai

Oldoinyo LengaiYou start at the base of the mountain at mid-night (00:00am) with a challenging hike up Mount Oldoinyo Lengai, Tanzania's active volcano, known to the Maasai as the "Mountain of God." This challenging hike involves scrambling and requires a high fitness to complete offering stunning views of the Great Rift Valley and the surrounding landscapes. After descending, enjoy a well-deserved rest and lunch at the base of the mountain or back at your lodge.

 

Note: Oldoinyo Lengai Trekking is operated and guided by local guides from the Engarasero Wildlife Management Area.

  • Approx driving distance: 0.5-1 hour to base of Oldoinyo Lengai / 0.5-1 hour back to Engarasero.
  • Expected game drive: None
  • Activities usually included: Oldoinyo Lengai trek with local guide
  • Optional extras: Porter to carry your daypack, Lake Natron cultural activities
  • Meals included: As per your accommodation booked
  • Commonly seen animals: Unknown
  • Occasionally seen animals: Unknown
  • Rarely seen animals: Unknown

Price, includes & add-ons

Click to see price indication for the various group options and group sizes avaialble. You can always request a custom quote: contact us.

Price per person (USD $)

  • Private group (private departure)

    please request a quote
  • Scheduled group (shared departure)

    please request a quote
  • * All prices are in USD ($) and serve as indications only for a standard package excluding pre/post accommodation, add-ons and comfort upgrades.

    Scheduled departures for Oldoinyo Lengai trekking are currently not available however for small groups we can consider offering your dates for others to join.

Standard packages usually include

  • Professional and highly experienced mountain guides ensuring safe treks, fair porter care, and expert knowledge of Lengai’s challenging volcanic terrain.
  • All trekking permits, park entry, and conservation fees pre-arranged, guaranteeing smooth access to Ol Doinyo Lengai, Lake Natron, and surrounding Maasai villages.
  • Complete safety support with first-aid kits, emergency response planning, local evacuation coordination, and teams trained for high-altitude and volcanic conditions.
  • All taxes, VAT and village / activity fees as applicable.
  • All National Park DAY conservation or park entry fee as applicable to the planned itinerary
  • All National Park NIGHT concession or Wildlife management Area fees as applicable to the planned itinerary
  • Specially modified 4x4 Land cruiser with pop up roof, radio calls and English speaking driver-guide, charging ports (Type G socket) and luggage space for a soft bag, max 20kg per person or maximum available space in vehicle. Note that safari vehicles have very limited overall luggage space.
  • 1.5lts per person, per day of bottled drinking water
  • Basic camping safaris include a tent, mattress, camping equipment and a personal cook (sharing for even numbered groups + 1 single tent for odd numbers)
  • Special camping safaris include a tent, mattress, camping equipment and a personal cook (sharing for even numbered groups + 1 single tent for odd numbers) with a private portable camping shower and camping toilet for use at special campsites.
  • Budget, medium and high range safaris include full board (or half board / bed and breakfast if indicated) accommodation (sharing or single with a supplement)

Standard packages usually exclude

Optional extras, add-ons and comfort upgrades

Although our standard package can be more than enough for most, we appreciate many desire certain comfort upgrades and add-ons and our tours can be customized to include as much or as little as you need.

Maasai Boma visit

Experience the rich Maasai culture at a traditional Boma, discovering their customs, dances, and daily life, offering a unique perspective into authentic African traditions.

Walking safaris

Accompanied by armed rangers (inside of parks or reserves) or local guides (outside of parks or reserves) you can encounter the flora and fauna on foot.

Wilderness bush lunch

You can reserve a fresh hot meal prepared and served to them right in the middle of the bush as a change from the usual packed lunches offered by lodges.

Canoeing safari

A peaceful and scenic canoeing safari can take you onto the Momella Lakes (Arusha National Park) or Lake Manyara (Lake Manyara National Park).

Maasai village

Take a short stop at a local Maasai village or a longer visit to a unique overnight Maasai style lodge to interact with this interesting semi nomadic tribe.

Nature hikes

You can include a selection of nature adventure hikes around your safari including beautiful waterfalls, coffee farm tours and a day hike on Mount Kilimanjaro.

Night game drives

Discover a new world of nocturnal animal species that come out in the dark with a special night game drive in Lake Manyara or Tarangire National Park.

Olduvai Gorge Museum

The Olduvai Gorge Museum is found on the way to Serengeti National Park and offers an interesting insight into some of the earliest human ancestors.

Traditional lunches

You can include a selection of tasty local Tanzanian style lunch options to swap your standard lunchbox freshly prepared at towns near our game reserves.

Pre & Post Accommodation for your Oldoinyo Lengai Treks

Before and after your Oldoinyo Lengai trek, relax in charming eco-lodges, rustic guesthouses, or boutique retreats. These stays provide comfort, cultural charm, and the perfect base for exploring or unwinding.

Lake Natron Camp

A comfortable mid to high-range tented camp in Egarasero Village, Lake Natron area.

Maasai Giraffe Eco Lodge

A comfortable mid-range eco lodge situated in Engaresero Village in Lake Natron area.

Lake Natron Tented Camp

A comfortable budget range tented camp located in Engaresero Village in Lake Natron area.

Africa Safari, Lake Natron

A comfortable and charming mid-range tented lodge in the Lake Natron Area.

Shah Tours basic campsite

A light dome basic camping setup at public campsites in Engarasero village Lake Natron area.

Essential Information for Oldoinyo Lengai Visit

Before your trip, review these key travel tips and planning guides to help you prepare for a comfortable and meaningful experience.

Travel Info for Tanzania

Visas, entry requirements, money tips, plastic restrictions and everything you need to know before flying to Tanzania for your trekking adventure.

Which Airport to Choose?

Confused about where to land? This guide helps you choose the right airport for your hiking and trekking adventure (and more) in Tanzania.

Vaccinations & Health Tips

What vaccines are recommended and how to stay healthy on your Tanzania trekking trip including malaria and yellow fever guidance.

Photos & videos

Discover handpicked photos and videos showcasing the Oldoinyo Lengai. From lush rainforests and rolling hills to cultural encounters and scenic viewpoints, explore the beauty and charm of this hidden gem.

Why Book Your Oldoinyo Lengai trek with Shah Tours?

Shah Tours offers expert guides, authentic cultural experiences, and customizable trekking packages in the Oldoinyo Lengai. With decades of experience, reliable support, and ethical practices, we ensure a safe, enriching, and unforgettable adventure.

Specially Modified

Our fleet of 4x4 Safari Toyota Land cruisers are specially modified in Tanzania for durability for harsh African roads as well as a pop roof for 360o game viewing inside of parks and reserves. Our vehicles are all maintained by our in house mechanic.

Expert driver-guides

An experienced and friendly driver-guide who will accompany you into the bush and offer their wealth of knowledge around our parks, flora and fauna. Your driver-guide becomes like an extended family member on your Tanzania safari trip.

Tailor made itineraries

We have a well trained team of travel consultants based in Tanzania who will tailor make each and every safari itinerary custom to your needs and preferences. Our team will work with you to design your dream African safari adventure.

Comprehensive Safety Measures

We prioritize your safety above all else. Our comprehensive safety protocols include first aid-trained guides, emergency response plans, and regular vehicle maintenance checks to ensure your adventure is only thrilling and secure.

All luxury levels

We can cater for all luxury levels from super luxury safari properties, tented camps or permanent lodges and basic camping under the stars. Your preferences and budget will allow us to hand pick ideal overnight stops on your tour.

Since 1984!

We have been a licensed operator of Kilimanjaro climbs since 1984 and have guided tens of thousands to Africa's highest peak. Booking with us means you are booking directly with the operator without any middle man.

Frequently Asked Questions About Oldoinyo Lengai trek

Find answers to common questions about visiting the Oldoinyo Lengai. From the best time to visit, top hiking trails, cultural experiences, and accommodation options, these FAQs help you plan a memorable and well-prepared journey.

Ol Doinyo Lengai “Mountain of God”

Ol Doinyo Lengai translates to “Mountain of God” in the Maasai language. For the Maasai, it is a sacred place believed to be the dwelling of their deity Engai. This spiritual dimension gives the mountain not only cultural but also religious importance. Combined with its rare geological features, the name underscores why Ol Doinyo Lengai is both a revered pilgrimage site and a world-class climbing destination.

Location and Height of Ol Doinyo Lengai

Mount Oldoinyo Lengai above the cloudsOl Doinyo Lengai is located in northern Tanzania, south of Lake Natron in the East African Rift Valley. It rises dramatically to an elevation of 2,962 meters (9,711 feet), making it one of Tanzania’s most iconic volcanic peaks. Its steep cone and remote position offer adventurous trekkers panoramic views of the Rift Valley, Ngorongoro Highlands, and Mount Kilimanjaro on clear days, creating a challenging but rewarding climbing experience.

Uniqueness of Ol Doinyo Lengai

Ol Doinyo Lengai is the only active volcano in the world that erupts natrocarbonatite lava. This lava is rare, cools at lower temperatures, and turns white quickly when exposed to air, giving the summit a striking lunar-like appearance. Its unique geology, combined with its status as a sacred Maasai mountain, makes it unlike any other trekking destination in Africa where science, adventure, and cultural significance converge in one remarkable location.

Lava Temperature and Characteristics

Ol Doinyo Lengai’s lava is the coolest in the world, erupting at about 500–600°C, far below the 1,100°C of typical basaltic lava. The lava is black and oily when it flows, but rapidly crystallizes into pale, powdery deposits as it reacts with moisture. This unusual chemical composition fascinates scientists and offers climbers a chance to witness one of Earth’s rarest volcanic processes firsthand, adding to Lengai’s global significance.

Yes, Ol Doinyo Lengai is highly active

Yes, Ol Doinyo Lengai remains highly active. Historical records date eruptions back to the 19th century, with significant activity in 2007–2008 when ash reached as far as Arusha. Smaller eruptions and carbonatite lava flows have continued intermittently, with activity noted as recently as the 2020s. This ongoing volcanic activity makes the mountain both dangerous and scientifically valuable, offering climbers and researchers an extraordinary opportunity to observe a living volcano.

Difficulty of Climbing Ol Doinyo Lengai

Climbing Ol Doinyo Lengai is possible, but it is physically demanding due to steep inclines, loose ash, and scorching daytime heat. The trek typically begins at midnight to avoid extreme temperatures, with most climbers reaching the summit at sunrise. While no technical climbing equipment is required, excellent fitness, stamina, and preparation are essential. The reward is an unforgettable sunrise view and the thrill of conquering the Mountain of God.

Duration of the Climb

Oldoinyo Lengai - base on the mountainThe trek up Ol Doinyo Lengai generally takes 8 to 12 hours roundtrip. Climbers usually start at night, reaching the summit around sunrise before descending in daylight. The route covers about 10.5 kilometers (6.5 miles) with a steep elevation gain of nearly 1,900 meters. Despite being a single-day climb, the ascent is intense, requiring strong endurance. Proper pacing, hydration, and a knowledgeable local guide are crucial for safety and success.

Best Season to climb Ol Doinyo Lengai

Climb Oldoinyo Lengai Lake NatronThe best time to climb Ol Doinyo Lengai is during the dry seasons: June to October and January to February. During these months, trails are drier and conditions safer for steep ascents. Climbing in the rainy seasons (March–May and November–December) is riskier due to slippery slopes and reduced visibility. Clear skies in the dry months also maximize the chance of stunning sunrise views over Lake Natron and the Rift Valley.

Accommodation and Trekking Support

There are no permanent huts or camps on Ol Doinyo Lengai. Climbers usually base themselves in Engaresero village, where basic campsites and rustic lodges are available. Lake Natron camps also serve as staging points. Treks are organized with local guides and porters, providing logistical support and ensuring safety. While the mountain itself offers no amenities, nearby accommodations make the adventure accessible, combining wilderness trekking with Maasai cultural encounters.

Safety and Risks of the Trek

Climbing Ol Doinyo Lengai involves risks such as steep terrain, loose volcanic ash, dehydration, and extreme heat. Although altitude sickness is minimal compared to Kilimanjaro, the climb is grueling. Volcanic activity is also unpredictable, with carbonatite lava flows occasionally visible near the summit. Safety improves with professional guides, adequate water, and nighttime starts. With preparation and caution, most climbers successfully summit, experiencing both danger and awe in one journey.

Other Tours & Destinations Connected to Oldoinyo Lengai trek

This package is usually combined with one of the below. We can also tailor a custom itinerary combining any of our packages for you.

Ngorongoro Highlands

Discover Ngorongoro Highlands and Lake Natron, a unique trek with volcanic scenery, Maasai culture, and flamingo-filled Rift Valley views.

Climb Kilimanjaro

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Waterfall & Coffee day trip

Discover Materuni Waterfall and coffee tour, a perfect Kilimanjaro trek add-on blending scenic nature, cultural heritage, and fresh brews at Moshi.

Climb Meru

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Wildlife Safari

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Beach holiday

Enjoy a beach holiday in Tanzania, the perfect safari add-on with white sandy shores, turquoise waters, vibrant marine life, and relaxing coastal escapes.
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