The Ikoo Valley, which is about 20 kilometers long, has a 300-meter-deep V-shaped gorge at its western end, which is widened further by the Ikoo River that flows alongside it. The Ikoo valley provides a great vantage point for photographing the stunning Mwingi scenery. From here, you can get some spectacular shots of the undulating hills beyond. The Ikoo valley is thought to have formed during the late Proterozoic Mozambique belt metamorphism, but there is evidence that it was reactivated at least once during the Pleistocene when the main East African Rift System in Kenya was rejuvenated. Kamba archers used the valley as a natural fortress to repel the spear-wielding Maasai warriors.