<p>The debut of skateboarding at the Tokyo Olympics will be yet another sign that an activity once embraced as a symbol of counter-culture has firmly joined the mainstream.</p><p>Skateboarding joins surfing and sports climbing at the Tokyo Olympics this summer with organisers and broadcasters hoping the new events will draw new and younger audiences to the Games.</p><p>With its inclusion into the Olympics, some worry that skateboarding will stray further from its non-conformist roots, while others say the event would elevate young women athletes in a still male-dominated sport.</p><p>Team GB’s Sky Brown - aged just 12 - will be one of those set to wow the crowd with her aerial tricks.</p><p>In the video above, get a glimpse of the ollies and flips that make this such a must-watch event.</p>