I think it is pretty well everyone who visits sub-Saharan Africa wishes to see the "big five", a term that comes from the big game hunting days and refers to the five animals that were most difficult to hunt on foot; the lion, the elephant, the Cape buffalo, the rhino and the leopard.
We were driving along a dirt road (more of a one lane track really) in Namibia's Etosha National Park last December, when we stopped so that my wife could take some pictures of a herd of wildebeest. I just happened to glance in the rear-view mirror of the truck and spotted the shadow of a cat crossing the road behind us.
The wildebeest were quickly forgotten, as we turned the truck around and cruised the 200m - 300m section of road where we thought the large cat might be. My wife spotted some movement in a bush and we parked beside it and waited. After about 20 minutes, this leopard emerged from it's hiding place; it was tracking a herd of impala. I literally drove along the track in reverse, taking pictures through the open rear passenger window; one hand on the steering wheel and the camera in the other hand.
This is one of the best shots that I got:
That was a real rush, and of course have a good shot to prove it doesn't hurt either.... The big cat was so close that I was able to shoot with my f/2.8 70-200mm lens.