2014 Nanjing Youth Olympic Games trailer

2014 Techno 293 Worlds Boys Fleet - Twenty Boys Techno 293 sailors out to impress at Nanjing 2014 Youth Olympic Games
Patrik Pollak
2014 Nanjing Youth Olympic Games - Second Youth Olympic Games start today. Together with other young athletes there will also 41 windsurfers from BIC Techno 293 fighting for Olympic medal.

Who are those kids, where do they come from, why are they windsurfing?