Hi Jane - i booked here through booking.com and it has free cancellation so might be worth booking a room and then cancelling if something better comes up (below is my post from last week)
I have also just booked a room at Southern Sun Elangeni & Maharani which is 0.6 miles from the Hilton. It's less than £100 a night and is also free cancellation. I will leave the bookings in place until closer to the time but if anyone has any feedback on this then I would be grateful.
What FB group did you join? I am potentially coming on my own (am female), hubby might join, it depends on finances and cover for the looking after the kids. I booked a room at the Hilton and also another room .5 miles away. Mine were both free cancellations so i would sooner have the options (assuming i get to the start line). I cant remember the name of the other hotel but its probably on the page before this one. I have never done it before so not sure what goes on.
Keep on here anyway as we can make plans closer to the time.