The What Makes You Beautiful hitmakers headed to the country at the end of March (15) to continue their trek as a four-piece, after the departure of bandmate Zayn Malik, and in between tour dates Styles opted out of sightseeing and relaxation in favour of charity work.
He paid a solo visit to the Lalela Project in Cape Town, an organisation which helps impoverished children throughout the nation.
A source tells Britain's The Sun newspaper, "Harry decided to go to the Lalela Project all by himself and he really impressed kids and workers there... He offered all of the students concert tickets and spoke to them at length about their lives... Harry could easily have spent extra time at his hotel relaxing but he really wants to give back when the band are travelling the world.
"And he likes to take these things on himself away from the rest of the group... this tour hasn't been easy for the boys but he knows their lives are far better than many of their fans' and kids being helped by projects like this."
Styles' bandmates Niall Horan and Liam Payne were pictured arriving back in the U.K. over the weekend (04-05Apr15) to begin work on a new album before their world tour resumes in Wales in June (15).