Many people ask me what my greatest experience has been as a wildlife photographer and even though I have had many thrills, nothing compares to witnessing a herd of wildebeest (or Gnu) crossing the Mara River. It is truly a spectacle as thousand of animals gather along the shore with hungry crocs infesting the water. I have no idea what drives them to cross at such peril back and forth but once a crossing starts, most of the animals in a herd that can range from the hundreds to well into the thousands will cross. This is where the zoom capability of the Sigma 300-800mm lens really shines and has no equal. The zoom versatility and reach allowed me to compose on just an individual gnu or quickly recompose on the herd as they began their perilous journey. I am already looking forward to this year’s trip in August to get a chance at my dream image of a croc leaping out of the water to get one of the gnu.