3 days - Lake Manyara, Ngorongoro Crater & Tarangire

Lake Manyara in 1957, a game reserve was established. In 1960, it was given National Park status and in 1974 about 1,400 acres were added to the southern end. The majority of the land area of the park is a narrow strip between the Gregory Rift wall to the west and Lake Manyara, an alkaline lake, to the east.
Ngorongoro Crater
A part of the larger Ngorongoro Conservation Area, one of three natural UNESCO World Heritage Sites found in Tanzania, the Crater is the remnant of a mighty volcano that collapsed inward upon itself after a mighty eruption between 2 and 3 million years ago.
Tarangire National Park
The name originates from the Tarangire River that crosses the park, the primary source of fresh water for wild animals during the annual dry season. The Ecosystem is defined by the long-distance migration of wildebeest and zebras. During the dry season thousands of animals concentrate in Tarangire National Park from the surrounding wet-season dispersal and calving areas.