The Grumeti Reserves, in the long-isolated Western Corridor, are a completely protected and patrolled wilderness. Only the animals and guests have free rein here - over 350000 acres (140000 hectares) with an array of wildlife that is unrivaled in its diversity: thirty species of grass and plant eaters, two dozen species of large carnivores and five hundred species of birds.

Because the Grumeti Reserves are relatively high in altitude (approximately 1350 metres or 4100 feet), the climate is usually quite comfortable with temperatures ranging from a normal midday high in the 80s (26-31 centigrade) to a night time low in the high 40s (9-10 centigrade). Typically, the warmest month is March while July and August can be pleasantly cool in the mornings and evenings.

Grumeti has two wet seasons and two dry seasons. The "long rains" usually occur between February and May and mark the great gathering of the herds in the eastern part of the region. From May through July - a dry season punctuated by occasional afternoon and evening showers - convoys of animals throng to Grumeti. As the supply of young grass is consumed, the largest herds depart for the Masai Mara in Kenya where they remain for the "short rains" which may occur from October until December. Meanwhile the large numbers of animals in permanent residence at Grumeti reclaim the hills and plains in a never-ending display of wildlife. By New Years, dry weather sends the now-distant herds south to prepare for their return to Grumeti.

Even if you have seen the wildlife riches of Africa before, you have never seen them on so vast a scale as at Grumeti. The completeness of this untouched world instantly engraves itself in the soul of every visitor. From the massive Cape buffalo to the lowly dung beetle, from the columns of wildebeest that stretch for miles to a lone leopard lounging on a tree limb, from the peaceful scene of a mother giraffe suckling her offspring to the ferocious spectacle of hyena attacking a zebra, the animals of Grumeti are part of a constant cycle. It begins with the grass and trees, continues through the living chain of eaters and eaten, until, once again, all life returns to the ageless soil from which it came.

The mission of Grumeti Reserves is to rehabilitate and improve the indigenous bio-diversity of the western Serengeti-Mara system to the benefit of local communities and districts, as well as national, and international stakeholders, through practices that are financially sustainable, environmentally and culturally responsible, and politically acceptable.