Coincidently, we also cruised into Capetown and stayed for several days before going up for Safaris. It was 9 years ago, 16-20 April 2015, it wasn't foggy on any of the days.
I have no Scottish links at all apart from laughing at Billy Connelly and watching Hamish Mcbeth.
However when we toured Ireland and the UK driving through Scotland around the lochs and such just felt like home. It was a strange feeling, as it doesn't really even look like anything I have seen in Australia.