The Mara Triangle is the western third of the Masai Mara National Reserve, covering some 510 square kilometres. It is bordered by the Mara River to the east, the Siria Escarpment to the west and north and Tanzania's Serengeti National Park to the south. This side of the reserve is far better managed than the eastern two-thirds, with mostly good roads. When the migration makes its way to the Masai Mara, the river crossings will generally take place from the eastern side into the Mara Triangle, so it is an ideal place to observe this phenomenon. This can take place anytime from mid-June to the end of the year, although mid-August until mid-October is more usual. Wildlife abounds here: lions, leopards, cheetahs, rhinos, elephants, buffaloes, hippos, zebras, hyenas, giraffes, antelopes and hundreds of species of birds. Most of the Triangle consists of open savannah, although the streams and rivers are lined by woodland. There are picnic spots strewn throughout the Triangle; one of the best is 'Out of Africa', halfway up the escarpment, which provides mind-blowing views of the plains.