I'll probably go to either my parents in the uk (I now live in a different country) or my in laws (not cat lovers, and I'd also be terrified of my cat being accidentally run over by my fil's wheelchair - almost happened before outside our house, fil's sight not great.)
I've used a cattery near us before, but that was when he wasn't such an outdoors cat. Not heard of cat international, shall look it up.
I am being silly I know!! He can't stay in the house and even if he goes to my in laws he'll have to stay in anyway.