Three days: visiting Tarangire NP, Lake Manyara NP and Ngorogoro Crater
Four days of the best that nature has to offer: 3 days Serengeti NP, 1 day Ngorogoro Crater
Five days: 1 day Tarangire NP or Lake Manyara NP, 3 days Serengeti, 1 day 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 Tarangire NP, 1 day Lake Manyara NP, cultural trip, 4 days Serengeti, 1 day Ngorogoro Crater