Climb Mount Oldonyo Lengai – The Sacred Volcano of Tanzania | Kili Trips

Rising dramatically above the East African Rift Valley, Mount Oldonyo Lengai is not just a geological marvel—it’s a sacred site deeply embedded in the culture and beliefs of the Maasai people. Known as the "Mountain of God," Oldonyo Lengai is the only active carbonatite volcano in the world, offering an unforgettable trekking experience that blends natural wonder with spiritual significance.

A Unique and Sacred Peak

Standing at approximately 2,962 meters (9,718 feet), Oldonyo Lengai may not be as tall as Kilimanjaro, but it offers an adventure like no other. Its name, in the Maasai language, means "Mountain of God," and it is considered a holy site. The Maasai believe this volcano is the dwelling place of their god, Engai. Climbing it is not only a physical journey but also a spiritual one.

An Active Volcano with Unusual Lava

What makes Oldonyo Lengai truly exceptional is its rare type of lava—carbonatite. Unlike typical basaltic lava, carbonatite lava erupts at much lower temperatures and is less viscous, appearing black and fluid upon eruption and quickly turning white when it cools. The last significant eruptions occurred in the early 2000s, and while activity is closely monitored, the volcano remains a living, breathing force of nature.

The Climb: A True Adventure

Climbing Oldonyo Lengai is not for the faint-hearted. The ascent usually begins around midnight to allow trekkers to reach the summit by sunrise. The climb is steep and demanding, with loose volcanic ash and rock underfoot making the path slippery. However, the reward at the top is worth every effort—breathtaking panoramic views of the Rift Valley, Lake Natron, and the distant peaks of Kilimanjaro and Meru.

The descent is equally challenging, requiring careful footing and stamina. It’s highly recommended to go with an experienced guide who understands the terrain and the mountain’s unique geology.

Combine with a Cultural and Wildlife Experience

Most trips to Oldonyo Lengai also include time at Lake Natron, a stunning alkaline lake famous for its flamingos and other birdlife. Visitors often explore nearby Maasai villages, gaining insight into traditional customs and ways of life. Combining the trek with a cultural and wildlife experience makes for a well-rounded Tanzanian adventure.

Prepare Properly

Due to the steep and exposed nature of the climb, good physical fitness is essential. Sturdy hiking boots, headlamps, trekking poles, and plenty of water are crucial. Temperatures can vary dramatically between night and day, so layered clothing is advisable. Hiring a local guide through a reputable tour operator like Kili Trips ensures safety and an enriching experience.


Mount Oldonyo Lengai offers more than just a challenging hike—it’s a journey into the heart of Tanzania’s spiritual and natural world. For those seeking a lesser-known but deeply meaningful adventure, climbing this sacred volcano is an unforgettable experience.

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