Andy McDonald was wing foiling at a local Margaret River surf break on Monday afternoon when he came face-to-face with a shark.
The 61-year-old was at the Margaret River Bombie break near Prevelly when the incident occurred.
Mr McDonald said he had no idea the attack was coming.
"Just out of the blue — bang — it felt like a freight train," he said.
"Something came up from under the water and just propelled me up into the sky.
" I knew it was a shark attack. "
The Prevelly regular recalled how he thought he might die.
"I actually fell on top of it, the shark, and I just started punching it," he said.
"It sort of dragged me underwater, and dragged the board and the sail under.
" And I thought, well, this is it. "
Mr McDonald's experience marks the 18th encounter with a shark so

ABC News AU

Illawarra Mercury
ABC News Canberra
Star Beacon
The List
Mediaite
IndyStarSports
Entertainment Tonight TV
Deadline Politics