A southern right whale and calf came close to Manly beach in Sydney, Australia.

A whole bunch of people came out on surf and paddle boards to watch.  Until the mother "attacked" by swishing her tail near them.

Please people: whales are bigger than you are.  Mothers with calves can get a little upset when something gets too near the calf.  (If you watch the video, I think you'll agree she was remarkable circumspect.)