There is a lovely beautiful drive down to Hermanus, please do it, and do it slowly. You can look over the city up on the mountains. The roads are easy to drive, and well kept.
This is a small town, a perfect day out of the city. There is a charm to it. A few boutique shops and stalls as well as other general shops. Plenty of food places, most of them overlooking the sea. Fish is done very well here. See my review of Fusion if you are looking for something to eat.
Mainly this place is a good stop during the Whale Watching season from June to December. There are plenty of places to stay in this little town as well, so don’t worry about accommodation.
Hermanus is well signposted coming out of Cape Town. Parking is easy, my advice would be to always park where there is an attendant, they can keep an eye on the car for you whilst you go around the shops. I parked for an hour or so and paid R6.
Helpful Haz 