To understand why, a one hour SharkFest special relives the most harrowing of shark vs surfer stories from the world's deadliest shark infested surf beaches.

Watch a clip from "Soul Surfer" about a competitive surfer who finds the courage to go back into the water after losing an arm in a shark attack.

A 37-year-old surfer, Steven Payne, was tragically killed in a brutal shark attack at Wharton Beach, Western Australia, while ...