The only active volcano left in East Africa, Ol Doinyo Lengai (or Oldonyo L’engai) is a sacred site for the Maasai who make pilgrimages to the mountain to pray for rain, cattle and barren women offer sacrifices in the hope that En’gai (God) will grant them children.
Oldoinyo Lengai is a volcano with a difference: the lowest temperature lava, at 500 deg Centigrade, is dark grey (with a consistency almost like cement) which quickly cools when exposed to air and sets to a lighter grey. The volcano is 2889m high (7,650ft), and can be scaled in 7-10 hours.
For the ultimate thrill and a great adrenaline rush, trek to the summit of Ol doinyo Lengai. The crater summit is awesome, almost lunar like with huge hornitos nursing boiling cauldrons of lava waiting to burst forth into gushing rivers of flowing dark grey.
Summiting the volcano to the lunar-like crater and frequently erupting lava vents is like no other experience on earth! O ldoinyo Lengai is the world’s most unique volcano, with frequent bursts of dark grey natrocarbonatite lava flows at temperatures of about 500 °C (unlike the red hot appearance of normal basalt lava which is around double this temperature). For those lucky enough to photograph volcanic eruptions at night, the sight is nothing short of spectacular. During the day, lava flows like rivers of molten chocolate – the viscosity is the lowest possible (similar to olive oil).
Treks begin at midnight, when it is cool, and takes around 7-10 hours to the summit. Not for the faint-hearted, the mountain is steep with deep ravines running on either side of the path to the summit, and a 200m steep concrete-like wall just before you reach the floor of the active crater with its awesome bubbling hornitos and spectacular geological extrusions formed from rapidly cooling lava bursts. The steep walls of the conical volcano appear white because of the cooled natrocarbonatite lava that hardens to form a concrete like brittle substance, giving it a glacial-like appearance. The trek is non-technical, but climbers are warned to be extra vigilant especially on the crater floor in view of the fragile hornitos that nurse melting pots of molten lava waiting to explode.
The Maasai hold Oldo inyo Lengai in high esteem and is a revered place of worship and sacrifice. Barren women will sacrifice a goat through “windows” in the mountain where En’gai (God) will accept the gift and grant the woman a child. The Maasai also pay homage to Lengai in times of drought and for protection of their cattle.
For those seeking the ultimate challenge, this active volcano in Northern Tanzania is the epitome of adrenaline-pumping adventure, offering as a reward sights greater than anything on earth.
Frequently Asked Questions
What is Oldoinyo Lengai and why is it special?
Oldoinyo Lengai is an active volcano located in northern Tanzania, often called the “Mountain of God” by the local Maasai people. What makes it unique is its rare carbonatite lava, which is much cooler and darker than typical lava. The mountain rises dramatically above the surrounding plains, creating a striking landscape. It holds both geological and cultural significance in the region. For adventurous travelers, it offers a truly one, of, a, kind experience.
Can you climb Oldoinyo Lengai?
Yes, climbing Oldoinyo Lengai is possible and attracts adventurous hikers from around the world. The climb is usually done overnight, starting around midnight to reach the summit by sunrise. The trail is steep and challenging, requiring good fitness and determination. However, the reward at the top is incredible views of the Great Rift Valley and nearby Lake Natron. It’s a tough but unforgettable adventure.
Is it safe to visit an active volcano?
Visiting Oldoinyo Lengai is generally safe when conditions are stable and you go with experienced local guides. The volcano is monitored, and access may be restricted if there is increased activity. Guides are knowledgeable about the terrain and safety precautions needed during the climb. Following their instructions is essential for a safe experience. Like any adventure activity, preparation and awareness are key.
What is the best time to visit Oldoinyo Lengai?
The best time to visit Oldoinyo Lengai is during the dry seasons, from June to October and December to February. During these months, the trails are less slippery and conditions are more favorable for climbing. The weather is also clearer, offering better views from the summit. Visiting during the rainy season can make the hike more difficult and less predictable. Planning your trip around good weather improves the overall experience.
What should I bring for the climb?
Climbing Oldoinyo Lengai requires proper preparation and packing. Bring sturdy hiking boots, warm clothing for the cold night climb, and plenty of water. A headlamp or flashlight is essential since most of the hike happens in the dark. Snacks, sunscreen, and a small backpack will also make your journey more comfortable. Being well, prepared helps you enjoy the climb safely and fully.
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