It normally dives 4 to 10 m ( 13 to 33 ft ) , but has been recorded to dive up to 70 m ( 230 ft ) .
It is a visual predator , so it is essential to hunting success that the water is clear .
predator normally dives 4 to 10 m ( 13 to 33 ft ) , but has been recorded to dive up to 70 m ( 230 ft ) .
It is a visual predator , so it is essential to hunting success that the water is clear .