We have a cottage in Cornwall, so will go there for a couple of short breaks, although mainly renting it to friends as DSs prefer to be home, near friends, I should put it on AirBnB really as we have a couple of gaps. We also have 5 days in Wales with bit family group (17). We did not consider going abroad this year, not happy to fly for a while yet.
I think lots of people will still wear masks to busy places like theatres, but I guess the ones most likely to be passing virus around will be the ones who don't want to wear masks 
Re open days, quite a few places are doing campus tours 1-2 days/week throughout the summer - Manchester, Falmouth, maybe Cardiff?
@EwwSprouts there is a nice St Andrews thread on here, although it has gone very quiet recently. Several subjects covered if you want to know anything.www.mumsnet.com/Talk/higher_education/4103843-St-Andrews-into-2021-new-thread.
One of the things to watch is how the universities respond to Covid - Manchester has now decided that blended learning is a permanent thing, they are not planning a return to large lectures. I guess they are taking the opportunity to redeploy their space, and they can recruit more students if they don't worry about teaching spaces big enough to accommodate all of them.