Real good waves in the outside and choppy water in the inside with the low tide. At some places you can't see the rocks below you, which can be rather dangerous for obvious reasons, but also because the sea urchins on this coastline are deadly. Never go walking on the rocks without your shoes.
From Johannesburg in South Africa, you should go east towards the N2 highway. Your landmark towns are Ermelo, Pongola and Kosi Bay. But if you travel from Durban (in SA) then just follow the N2 north - it ends by the SA border to Mozambique. North of Ponto de Oura.