In reply to UKC News:
The concept of social distancing in a climbing wall seems a little pointless... You only have to look at the chalk haze in your average wall / boulder venue to see that the air is stale, and I would have thought that if someone in the wall is contagious then there will be a risk that transmission will occur regardless, albeit not so high as you are unlikely to be standing in some else's breathing space for a long period of time.
I would have thought the sensible interim solution as stated is to limit to lower numbers so if someone is contagious then there is less people to transmit to.
This is personal, but I go to a climbing wall to mentally relax, and I find almost nothing relaxing about skulking around people obsessing about their 2m of space, in fact quite the opposite.