At 2,980 m (and still growing), it's the highest active volcano in Tanzania, and although it's half the height of Kilimanjaro
  • Last eruption: 2023 AD
  • Elevation: 2,962 m
  • Coordinates: 2°45′50″S 35°54′50″E / 2.764°S 35.914°E

KILIMANIA – WE WORK WITH YOU

TREKKING IS DONE PROFESSIONALLY & RESPONSIBLY

South of Lake Natron in the eastern rift valley of North Tanzania, lies Mount Ol Doinyo L’engai (locally regarded as the sacred Mountain of God in the Masai Language), an active volcano. At 2878meters, Mt. Lengai is the only known volcano in the world that sometimes erupt natrocarbonatite lava, highly fluid lava that contains almost no silicon. Natrocarbonatite lava (most fluid lava) is also much cooler than other lavas.  During the day most of this lava flows look like fluid black oil. Some feel the lava flows resemble mud like-flows.  Natrocarbonatite lava turns white when in contact with moisture.  During rainy periods, the lava turns white almost immediately whilst this whitening takes longer during the dry periods.

Eruption


Mount Ol Doinyo Lengai also has phases of explosive activity during which the composition of the lava may contain much more silicate material. With this type of eruption, initial phases of the eruption may include strong lava fountains but usually there is no fluid lava and ash eruptions accompanied by ejection of rocks and explosions occurs.  The two most recent eruptions of this type occurred during 1966-1967 and 2007-2008.  Almost without fail, about every seven years Lengai erupts and plumes of smoke billow out of the crater. At other times it is possible to walk down into the crater, almost to the edge of the molten lava flows.


The ascent of Lengai is demanding on account of the day time heat, lack of water, steep and unstable slopes of ash and crumbly rocks. An early start is recommended and the best approach is from the west where the morning sun can be avoided for a while.

“Oldoinyo Le Ngai” is a Maasai term meaning “Mountain of God”. This mountain is the only active volcano in East Africa. Volcanic activity on the mountain has been observed from as far back as 1883, and it is still active today. The Oldoinyo Le Ngai mountain reaches a height of approximately 9442 feet. The Crater Highlands are part of the Ngorongoro Conservation Area. This is a reserve where the local communities live alongside the wildlife. The highlands consist of a range of Volcanoes-not all extinct-rising steeply from the side of the Great Rift Valley in Northern Tanzania. Hence they are more than JUST the Ngorongoro Crater with a number of impressive peaks, with steep escarpments, crater lakes, dense forests and grassy ridges, streams and waterfalls. o¬ne volcano the Ol-Doinyo-Lengai (2878m) is even active! It is also home to many Maasai people who have grazed cattle o¬n the grasslands here for hundreds of years. Most walking is done at around the 3000mts mark. There are many options though available to the adventurous.

Itinerary

OVERVIEW

There are many options though available to the adventurous.

  • Day 1 – Arusha – Lake Natron (Ngare Sero) …
  • Day 2 – Lake Natron – Ngare Sero to Ol Doinyo Lengai. …
  • Day 3 – Ol Doinyo Lengai summit and back to Lake Natron campsite. …
  • Day 4 – Lake Natron – Arusha Town.

What’s Included?

  • Transport
  • Ranger/guide
  • Porters
  • Park fees
  • Hut fees
  • Rescue fees
  • Cook
  • Meals
  • Tea and coffee

FULL ITINERARY

Day 1 – Arusha – Lake Natron (Ngare Sero)

Departing Arusha in the morning you drive to Mtu-wa Mbu (Lake Manyara) for lunch. After lunch you drive north along the bottom of the Great Rift Valley wall to Lake Natron and the village of Ngare Sero at the base of Ol Doinyo Lengai. Overnight at a campsite by the lake.

Day 2 – Lake Natron – Ngare Sero to Ol Doinyo Lengai

From Lake Natron to Ngare Sero is a 3-hour walk. Lengai is best approached from the west. Between Ngare Sero and Lengai’s lower slopes is another 3 hours walk. The vehicle will go o¬n ahead here so that it is there to take you up this large gully and so saving you at least 6 hours of walking. Overnight camp in the gully.

Day 3 – Ol Doinyo Lengai summit and back to Lake Natron campsite

A very early start in order to gain as much height as possible in the cool of the morning. Sun hats and a large water in-take are essential. Descend by the same route.
Great care should be taken on the way down: loose volcanic gravel on bare rock makes it perilous going in places. Overnight at the Lake Natron camp site.

Day 4 – Lake Natron – Arusha Town

Departing after breakfast you drive back to Arusha town. Drop-off.

(1) Comment

  1. Kili_travel

    thanks a lot

Leave a Reply

Your email address will not be published. Required fields are marked *