Unbelievable! My wife and I had a fantastic trip to Kenya 25 years ago. Many non tourist things, darting a family unit of elephants for relocation, walking all day with a troop of baboons etc. The trip ended at the Maasai Mara. On our last day we had a choice of finding Cheetahs or possibly seeing a crossing. Not even a choice, the crossing was high on my list. The amount of Wildebeest was unbelievable, as far as the eye could see. Our guide pulled up to the bank of the Mara and we waited. The only other vehicle was a professional film crew. A large string of wildebeest approached the edge of the riverbank and the ones in front chickened out and turned away which then dragged the string of a few thousand with them. Our guide said sit tight. A couple of hours later they turned and this time the ones in the front were pushed from their comrades behind them. Once the first guys took the plunge they all followed. It is a memory to last forever. The sounds, sights and dust with pure controlled chaos was unbelievable! As I tell my children, enjoy every moment in the field because in your lifetime it will change dramatically as it has in my lifetime. This is a prime example.