Every year my family and I go for winter sun in the October half term. We often do big group holidays with friends and family during the summer holidays, but this week has historically been just the four of us. We go to the same place where we have favourite restaurants and beaches and kind of always do the same things. We've been going since our children were little and they're now both secondary school age so it's nice that they still want to do it and the place is full of childhood memories etc. It may well be the last time we ever go as a family. Anyway, a friend of ours contacted my husband a few weeks back to ask where exactly we went for our winter sun. So my husband told him and sent him a link to our hotel. He replied by saying, looks great, mind if we crash it? My husband wrote back and said, give me a call, it's a great place but I'm not convinced it's entirely your cup of tea. A day later he got a reply from his friend saying he'd booked it. Now firstly AIBU in being really upset that they're coming on our holiday without really checking it was OK with us? They're nice people but there's no chemistry between their children and ours. And, selfishly, I just really, really like having this holiday as a 'just us' holiday!!! And regardless of whether or not AIBU, WWYD? It's too late to say they can't come (and I wouldn't anyway, that would be appallingly awkward and rude) but is there any way of managing the situation so that we can still do lots of stuff on our own? Without being rude or having to have a Difficult Conversation?