Checking on this as we are in the initial planning stages but -
My parents (in their late 60s) want to come visit us here in London this summer for a good amount of time (3 months or so). Conveniently my friends are taking extended parental leave for the summer and are interested in subletting their flat (and cats) for a reasonable price to my parents. So far so good.
They will likely want to take a few longer weekend trips to Ireland, Amsterdam, Stockholm etc so I am concerned about their exit and reentry and being questioned at the border all the time. Would it be prudent for them to get visitor visas issued? I can just see them getting stuck in questioning at Heathrow or something.
