However, one trip to the beach almost ended in disaster after Hemsworth got caught on a rope.
He tells Men's Health magazine, "I surfed competitively from age 13 to 18. Every day, before and after school. I wanted to surf for the rest of my life. It's what all my friends did.
I even had it as a subject in school for a number of years. They teach you all parts of the surfing industry: How to judge surf heats, that sort of thing.
"The fear of dying? That's part of the fun of it. The adrenaline you get from surfing big waves. I've seen a shark before. You get the worst wipeouts when you're not expecting it.
"When I was a kid, one time I got my leg rope wrapped around my whole body like a ball, under water. Couldn't get up. I was in waist-deep water, but I almost drowned. You know, I've had a few times."</div>