The second largest city in Swaziland after Mbabane, the capital, Manzini has a fairly large population of 80,000 citizens.
My suggestion
If you just spend half a day there, that should be fine. Swaziland attracts visits more for the exceptional beauty of its nature than for its cities. Also, be on your guard: the crime rate is growing in urban areas.
The Kruger National Park in one of the best known game reserves in the world, where you'll see a host of wild animals. Among them, you'll be able to spot the Big 5.
Even though Robben Island and Mvezo provide poignant links to Nelson Mandela, spending time exploring his history in Johannesburg will also show you how Madiba spent several years.
Stretching well over 200km, the Drakensberg range is a mind blowing blend of peaks and troughs. Numerous trails run along the length of this hiking paradise.
Durban is the biggest town in KwaZulu-Natal. Sitting on the Sunshine Coast, by the Indian Ocean, its American/Australian beach culture attracts surfers and water sports fans from all over the world.