We will be arriving in Nairobi late at night in August and then the next daywe want to visit Giraffe center, Shedrick's Elephant center and Bomas of Kenya. We are family of 5 and we will be renting a car with driver. If we start around 11-12noon what is the best route to take in order to finish for late dinner around 8pm. How do we arrange our journey? Is this possible within this time?