Stunning footage shows a blue shark swimming

This stunning footage shows blue SHARKS swimming off the coast of Britain.Show more

The beautiful fish were filmed by co-founder of Beach Guardian Emily Stevenson during a boat tour - and she said they spent more than five hours playing around them.

Emily, 22, said conditions were perfect to capture the crystal clear footage off the coast of Falmouth, Cornwall, on Sunday and described it as the best experience of her life.

But she warned that the beauty of what she filmed came with a sobering message - that more than 20 million blue sharks are being killed each year with no catch limits in place.