Three days: Tarangire NP, Lake Manyara NP, Ngorogoro Crater
Four days: 2 days stunning Serengeti NP, 2 days Ngorogoro Crater
Five days: 1 day Tarangire NP or Lake Manyara NP, 2 days Serengeti, 2 days Ngorogoro Crater
Six days: 1 day Tarangire NP, 1 day Lake Manyara NP, 3 days Serengeti, 1 day Ngorogoro Crater
Seven days: 1 day Tarangire NP, 1 day Lake Manyara NP, 4 days Serengeti, 1 day Ngorogoro Crater
Eight days: 1 day Arusha NP, 1 day Tarangire NP, 1 day Lake Manyara NP, 4 days Serengeti, 1 day Ngorogoro Crater