Some are liked for different reasons. Some have huge big dunes of soft white sand. The best beaches for surfing and body bording are Big Bay, Kommetjie and Kalk Bay. These beaches have a reef and this makes big waves. Some areas are polluted and this is sad as it kills off the sea life and it looks ugly.
Birds eat the shiny plastic and think they are full, but later die of starvation.
There are beaches to suit all kinds of people. The warm side has beaches where you can walk out quite far before it gets deep. This is the side with many sharks, but they don't often bite people because there are lots of seals to feed them. The last shark attack on this coast was 2 years ago. The cold water side gets deep quickly, but has less wind so you can lie and bake in the beach afterwards.