You thought you could only see this in movies.
Adam Walker, a British competitive swimmer was swimming through New Zealand waters last Tuesday when he noticed a 7-foot shark directly beneath him. He did get attack, however, after approximately 10 dolphins surrounded Walker, swimming right along with him for over an hour. Their tails were brushing his body, that’s how close they got to Walker. It’s not clear whether the dolphins joined Walker to protect him or just to play, but he is undeniably grateful for their company.
How cool is that!
[Source]
