Umhlanga, South Africa (CNN)
You won't find much space in Matt Bouman's garage -- or man cave, as he refers to it.
On the three walls and the space within are surfboards, paddle boards, kayaks, surf skis and just about anything else that can float on water.
Bouman has competed under the South African flag in five water sports over the past two decades, picking up medals along the way.But he's not one to brag.
There are no trophies on display at his house in Umhlanga Rocks. No social media accounts boasting of his accomplishments. No sponsors plastered across his T-shirts.
The only hint that he's a top competitive ocean athlete is when he charges into the water with his game face on.