Returned to Canada from a great tour. Enjoyed our time at the crater very much. Had excellent guides/drivers with Leopard Tours, stayed at Serena Lodges and enjoyed them all very much. The Serenena Lodge at the Crater being one of my favourite. Food excellent, staff wonderful. Room very comfortable, enjoyed the cooler evening for sleeping. Saw an amazing rainbow late afternoon over the crater out my door - great photo. Saw lions, rhino, huge elephant lots of other animals also. Would have liked to see more rhino, but at least saw the one. Great day, would like to explore area surrounding crater more - next time! Enjoyed seeing the Maasai with their herds, missed them when we got to the Serengeti. Was not overly impressed with Olduvi Gorge, but it was OK.