The 4-day Tanzania safari tour package is the best trip with 3 nights of accommodation to visit Serengeti, Ngorongoro Crater, and Tarangire. Also, the plan for this 4 days safari is to two days in Serengeti, then Ngorongoro and Tarangire take one day each. So, the first day is a safari to Serengeti which will make a two days game drive. Then the third day is a safari to Ngorongoro for the full-day game drive. The final day is a safari to Tarangire, then, in the evening, is a journey back to Arusha.