Looking north, you’ll witness the vast, arid salt flats of Lake Natron stretching endlessly before you. To the south, the crater highlands and the Ngorongoro Game Reserve unfold, while to the east, the majestic peak of Kilimanjaro dominates the horizon. The western side is framed by the lush, forested escarpments of the Rift Valley. Every seven years, the volcano awakens, sending plumes of smoke billowing from its crater.

Climbing Ol Doinyo Lengai is an exhilarating yet demanding adventure. The ascent, which can be completed in about six hours, is especially challenging due to the intense daytime heat, lack of water, and the steep, crumbly slopes of ash and rock. For the best experience, hikers begin early in the morning, reaching the summit just in time for the breathtaking sunrise. A short-sleeve shirt, jacket, and long trousers are recommended for the climb, as the temperatures can be cold at the summit before dawn. The descent is made easier by the cool shadows of the morning.

This sacred mountain is revered by the Maasai, who have used Ol Doinyo Lengai as a site for prayer to their God, NGAI, for generations. Uniquely, it is the only volcano in the world to erupt natrocarbonatite lava, which is significantly cooler than the more common basaltic lava found in other volcanoes, with temperatures around 510°C compared to the 1,100°C of basaltic lava. This cooler lava, with its lower silicon content, creates mesmerizing cone-like structures in the crater over time.