I am getting very excited about this trip and I hope my fellow travelers are as well.
We have a free day when we are in Swakopmund and I am booking a hot air balloon ride. I am mentioning this here because it's not mentioned as a possible activity in the Trip Notes but Exodus have kindly checked with the local operator and he highly recommends it. So, in case you a) read this and b) would want to do it too, I thought I would mention it here as I don't know how many free places there might be on the day.
Meanwhile, really looking forward to meeting you all and seeing a part of the world I haven't visited before!!