Black Mermaid: ‘I was always the only black person on the boat’

As the first certified freediving instructor in South Africa, Zandile Ndhlovu is on a mission to teach black kids to swim and not be scared of the water.

Known as the Black Mermaid, she wants to engage the new generations in marine conservation to better protect the oceans and control environmental damage.

Video produced Natalia Zuo. Edited by Shanshan Chen.

Zandile Ndhlovu is on this year's BBC 100 Women list. You can read more about her here.

Watch the full documentary 'Rising Tides, Shifting Futures' on YouTube, external or the BBC iPlayer (UK only).

Follow BBC 100 Women on Facebook , externaland Instagram, external. Join the conversation using #BBC100Women.