with this terrifying shark attack at a popular southern California beach. The survivor of the vicious attack is speaking out this morning. And he's getting very emotional about his brush with death... See More
with this terrifying shark attack at a popular southern California beach. The survivor of the vicious attack is speaking out this morning. And he's getting very emotional about his brush with death and the jaws of the great white. ABC nick watt has his story. Get out of the water! Shark! Reporter: This is the moment when Steve Robles morning swim turn into the a nightmare. Shark attack on a busy beach, July fourth weekend. You saw it coming at you. Made a real fast sharp left turn, and it lunged right at me chest. Reporter: Look closely, hard to see, that's the shark's head moving up and down, twice. You could just hear everything crunch. Reporter: Listen and you'll hear his cries of agony coming from the water. People on land realizing what just happened. Oh -- he got bit. Reporter: Those, and the horrifying wounds it left behind, the shark, a 7 or 8-foot juvenile was mad. Hooked from the pier. When Steve, a long distance swimmer got in the way. I felt the shark gnawing into the chest with the whole body vibrating. I grabbed the nose with this hand, and tried to pry it off of my chest. I was staring at the shark eyeball eyeball-to-eyeba eyeball-to-eyeball, literally right here. It was the most frightening thing anybody could experience. Reporter: He punched the shark in the nose, it bit once more and disappeared. What was going through your mind? I didn't want to die. Just -- I was scared. I was panicked and -- Casey Fenwick was surfing just a few feet from the attack. Blood everywhere. Reporter: The great white population in American waters is up 42% since 1997. Last week, a 12-footer was spotted off cape cod. And at this beach, juveniles spotted every day this summer by audacious paddle borders. But this is the first time one has attacked here ever. I have a second chance, that's all I can say. Reporter: For "Good morning America," nick watt, Manhattan beach, California. Thank goodness. Steve must have a mean left hook. He said today is the first day of the rest of his life, a new beginning. So blessed to be okay.
This transcript has been automatically generated and may not be 100% accurate.