Adding the Ol Doinyo Lengai trek to your Tanzanian safari is a profound experience that combines adventure and immersion in Maasai tradition. Located south of Lake Natron, Ol Doinyo Lengai, also known as the "Mountain of God", is held sacred by the Maasai tribe and is the only active volcano globally that emits unique carbonatite lava.

This majestic volcano is considered the dwelling place of Eng’ai, the Maasai God, believed to express displeasure via eruptions and droughts. Local Maasai tribes undertake a pilgrimage along the steep volcano slopes seeking divine blessings for rain, cattle, children and even fertility for childless women.

The trek itself is captivating with an abundance of natural beauty. As you maneuver through rugged landscapes towards the 2878m high summit, you're rewarded with panoramic views over the dense Rift Valley, vast salt marshes, and, on clear days, the distant Mount Kilimanjaro. Interestingly, the lava, initially dark as oil when solidified, turns white when in contact with moisture, adding another unique aspect to your trek.

However, the climb is challenging, physically demanding, and doesn't follow a defined path. At sections, you'll have to cross 45° steep lava channels on the volcano's western flank, which can be quite grueling. Therefore, the trek is only recommended for seasoned climbers with strong physical conditions.

It's important to note that due to the climb's challenging nature and lack of infrastructure, climbers plan for this trek at their own responsibility and expense. Despite these conditions, the trek to the top of Ol Doinyo Lengai guarantees unmatched adventure and stunning vistas, making it an incredible addition to your Tanzanian safari experience.