Humpback whale warns off kayakers in Hawaii

These two kayakers got more than they bargained for on a trip to spot sea turtles off the Hawaiian island of Maui - winding up in the path of an anxious female humpback whale, surging out of the water to protect her young.



The female adult flapped her fin at the passers-by to warn them off, before coming up out of the water as the kayakers quickly escaped. Neither was hurt.



Humpback whales are not aggressive, but adults can reach up to 16 metres in length and 36,000 kilos in weight.



More photos here.