The tour provider was Cruzeiro Safaris and the driver guide was Timothy. We called and extended the booking to also include an afternoon game drive in Nairobi National Park. So, Cruzeiro Safaris was good when I called and extended the booking at the published rate, to also include the afternoon. Timothy was a good driver, but was not very knowledgeable about the Elephant Orphanage or Giraffe Center....the good news is that both of those facilities has a speaker that gives you the background. Where Timothy excelled was on the game drives. He had a good eye for spotting the animals, was on the phone and talking with the other drivers regarding where the animals were at, so we got to see lions, white rhinos, Masai giraffes, common zebras, cape buffalo, ostriches, impala, elan, and hartebeasts. The only downside to the day was the vehicle, while very much enjoyed the roof that opened up, so could stand and see animals, BUT the aircon did not work, so there was times in the morning when driving that had to have windows open to get air in the van.