
Mount Oldonyo Lengai
Mount Oldonyo Lengai : The name “Oldonyo Lengai” means “Mountain of God” in the Maasai language, and the volcano is considered sacred by the Maasai people who live in the area. The summit of Mount Oldonyo Lengai is 2,878 meters above sea level, and the climb to the top takes about six to eight hours. The climb is considered challenging because of the steep and rocky terrain, as well as the extreme temperatures that can reach up to 40°C during the day.
One of the unique features of Mount Oldonyo Lengai is the type of lava that it produces. Instead of the typical red-hot lava that most volcanoes produce, Oldonyo Lengai’s lava is a unique black, almost cold-looking lava that is much cooler than other types of lava. This lava is rich in carbonates, which gives it a unique chemical composition and makes it very different from other types of lava.
Despite the challenges of the climb, many visitors are drawn to Oldonyo Lengai because of its unique beauty and spiritual significance. Climbing the mountain is an unforgettable experience, and visitors are rewarded with stunning views of the surrounding landscape and the opportunity to witness one of the most unique geological formations in the world.
Where is Oldonyo Lengai?
Oldonyo Lengai is located in northern Tanzania, close to the border with Kenya. Specifically, it is situated in the eastern branch of the East African Rift Valley, in the Arusha Region. The nearest town to Oldonyo Lengai is Engaruka, which is about 20 kilometers to the northwest of the mountain.
How much is costing climbing Oldonyo Lengai Mountain?
On average, the cost of a 3-day Oldonyo Lengai climb package ranges from $70 to $100 per person, depending on the tour operator and the level of service provided. This cost usually includes transportation to and from the mountain, park fees, camping equipment, food, and the services of a guide and porters.
It’s important to do your research and choose a reputable Tanzania tour operator to ensure your safety and the quality of your climb. Additionally, it’s important to note that climbing Ol Doinyo Lengai is a physically challenging activity that requires a certain level of fitness and preparation. Therefore, it’s recommended that you train adequately before attempting the climb.
What is the geology of Oldonyo Lengai?
Oldonyo Lengai is a unique and fascinating geological formation, with a complex history and distinctive features that set it apart from other mountains and volcanoes.
Oldonyo Lengai is a stratovolcano, which means that it is composed of layers of different types of rock and ash that have been deposited over time by volcanic activity. The mountain is relatively young, geologically speaking, with the most recent eruptions occurring in the late 20th century.

What sets Oldonyo Lengai apart from other volcanoes is the type of lava that it produces. Instead of the typical red-hot lava that most volcanoes produce, Oldonyo Lengai’s lava is a unique black, almost cold-looking lava that is much cooler than other types of lava. This lava is rich in carbonates, which gives it a unique chemical composition and makes it very different from other types of lava.
The unique lava of Oldonyo Lengai is caused by the mountain’s location in the East African Rift Valley, which is a region of active tectonic activity where two tectonic plates are pulling apart. This pulling apart creates a pathway for magma to reach the surface, resulting in volcanic activity.
Oldonyo Lengai is a fascinating geological formation with a unique history and distinctive features that make it a must-see Tanzania safari destination for anyone interested in geology and volcanic activity.
Tourism activities in Oldonyo Lengai
The main tourism activity in Oldonyo Lengai is hiking and climbing the mountain itself. The climb to the summit takes about 6 to 8 hours and is considered challenging due to the steep and rocky terrain, as well as the extreme temperatures that can reach up to 40°C during the day. However, the climb is also considered very rewarding, as it offers stunning views of the surrounding landscape and the unique volcanic formations of Oldonyo Lengai.
In addition to climbing the mountain, visitors can also explore the surrounding area and engage in cultural tourism activities. The nearby Lake Natron is a popular Tanzania safari destination for bird watching, and the Maasai people who live in the area offer cultural tours and opportunities to learn about their traditional way of life. The Engaruka Ruins, an ancient archaeological site, is also located nearby and offers a fascinating glimpse into the region’s history and culture.
Oldonyo Lengai is a great Tanzania safari place for adventurous travelers who are interested in hiking, climbing, and exploring unique geological formations. It is also a great place to learn about the local culture and history of the Maasai people who live in the region