I think it's worked out well for you hun. I was nearly 8 months pg at Christmas time with DS1 and I would have much preferred a quite Christmas with my DH. Christmas is usually hot and of course you get tired so easily, so it's great to be somewhere where there are no expectations on you. If you want to rest you can, if you want to have a cool shower or bath you can. Plus, this is the last time for a very long time that you will have an "adult" christmas - ie with the focus on you as a couple rather than it being all about the kids. I don't think it matters what you do, just have a lovely "couple time" on the day and enjoy it.