With an area of 1510 km² the Maasai Mara is not the largest conservation area in Kenya, but it is probably the most famous. The entire area of the park is nestled within the enormous Great Rift Valley that extends from the Red Sea to Southern Africa. The terrain of the reserve is primarily open grassland, with clusters of the distinctive acacia trees in the South-East region. The Western border,where Kilima Camp is situated, is the Esoit Oloololo Escarpment of the Rift Valley, and wildlife tends to be most concentrated here, as the swampy ground means that access to water is always good and tourist disruption is minimal. The eastern most border is 224 km from Nairobi, and hence it is the Eastern regions which are most visited by tourists.The International Airport is Nairobi Jomo Kenyatta International (NBO), GMT+3. There are several airstrips and companies flying from Nairobi to the Maasai Mara. The journey takes 40 minutes. The closest Maasai Mara airstrip – Kichwa Tembo is 15 minutes by car from Kilima Camp. See also “Contact us” for more information.   The hot season is from December to March when temperatures range from 28ºC / 80ºF to 32ºC / 92ºF The cold season lasts  from July to September, but temperatures rarely fall below 11ºC/52ºF wever, nights can be chilly in all seasons because of the altitude and warm clothing is essential. Long rains usually come around March to May while short rains are between November and December. The short rains are usually followed by sunny skies.