You went back to the place you were married? With a gallon of petrol I hope!!Winelands tour, obviously table mountain, camps bay is pretty smart place, cape point, Newlands if either Cricket or Rugby are on, the botanical gardens, food is fantastic and all very cheap at the moment due to the exchange rate. Baia at the V&A is very good as is Belthazar (Steak) also at the V&A and the Codfather at camps bay are all great place to eat.
Been twice, got married there first time and return trip didn't disappoint, you will love it.