Once he was back on the board Mr Bower pulled his legs together and kept his arms at his sides and went on a hunt for his paddle.
"I was worried about my legs dangling in the water 'cause I was worried about what was chasing it to make it jump. I got my paddle then just lay on my stomach and kind of just paddled in after that."
The Kristin School student wasn't sure he would get back on the paddleboard.
"My mates were saying you could paddleboard for 50 years and nothing would ever happen like that ... Then I'd borrowed my mate's board and I'd only been on it for maybe two minutes and that happened to me.
"I think I'll stick to surfing." Omaha Surf Lifesaving Club captain Kevin Blair said stingrays were common in the bay at this time of year because they sought shelter from being hunted by orca and dolphins. But it's not typical of the species to leap out of the water, unless they are scared.
"I'm not sure he [the stingray] was being chased but he might have thought the board was an orca.
"They're quite big boards, up to 8ft (240cm), so if he's a juvenile and saw something big and black, he would have thought, 'I'm out of here'."