It was a bit of a waste of time tbh, especially if you've visited before. The one to one chat was just a chat like the Q&As they do but with just you and an acedemic.
We just saw a lab, the library and a computer room, had a mini lecture thing on black holes and the usual why you should study physics here talk and a presentation on how ucas and doing our exams works, for some reason.
On all the other applicant days that I've been to we've had tours round the campus to see the union and had the chance to see the accomodation but we didnt do any of that.