It’s called rollerblading in some countries, inline speed skating or simply “blading” in others. Some consider it a hobby but it’s also a professional sport.

For a group of kids in Colombia it’s become an athletic activity that has changed their lives.

It’s all thanks to one man, the founder of a skating club in a city that didn’t offer many recreational options. He led a community effort to build a skating park that keeps kids away from drugs.

Now the park is helping put them on a natural high.

Meet Game Changer Johann Carvajal.

For the last decade, Colombia has been recognized as a world champion in this sport. It took home seven “gold” medals in the most recent Inline “Speed Skating” World Championships.