Ol Donyo means 'Mountain of Buffalo' in Maasai. about 250 buffaloes roam the slopes. Kikuyus call it Kea-Njahe, meaning, 'Mountain of the Big Rain' which is Ngai's lesser homes.

This can be a fascinating day trip from Nairobi which is only 65 kms away. The mountain rises to 8,000 ft, covering 20sq. kms. Particularly attractive for hikers or families wanting some freedom and exercise. Visitors are recommended to approach via the spectacular Fourteen Falls on the Chania River. The Park's attraction is its beauty and views of Mounts Kenya and Kilimanjaro. There is game like baboons, colobus monkeys, bushbuck, impala, duiker and lot of birds.

The solitary mountain rears up to 2,145m from an otherwise flat area. The steep ascent requires a 4WD vehicle. Near the summit lies the grave of Sir William Northrup McMillan (1872-1925) and his wife Lady Lucy. He was a huge Scot, raised in St Louis, Missouri, USA. He arrived inKenya in 1901 for the big game shooting, playing host to Roosevelt during his famous 1911 safari at their ranch, Juja Farm (now a popular location for film crews). He and his wife were great philanthropists, creating the MacMillan Library in central Nairobi. Ol Donyo Sabuk National Park has one campsite