A diver has captured on camera the moment he risked his life to swim alongside a 15m humpback whale in Hawaii.
Marco Queral said he was cautious when attracting the female whale's attention last week, because one flick of its tail could have meant death.
"They are usually more shy and cautious toward humans and boats ... perhaps because they are not so accustomed to seeing humans offshore," Mr Queral was quoted in the Daily Mail as saying.
The 42-year-old has been swimming with dolphins and sea creatures for 17 years
