Christmas in the Caravan

Hi all, we usually go away in the October half term in the caravan, normally to somewhere not too far away (1-2hrs drive). However this year, due to a change in holiday periods at work (changing from Apr-Mar to Jan-Dec due to a takeover) I don't have enough holiday left.

So as my firm shuts between Christmas and New Year (and it doesn't come out of our holiday entitlement) we thought we'd push the boat out a little and maybe do Christmas in the caravan. Again, not too far (poss. Cherry Hinton or Sandringham), and we think we have worked out the logistics of taking presents (at least for our two boys) and doing the food, and obvisouly the weather might be foul but I wondered if anyone had any tips / ideas / pitfalls even they could share?

Thanks

AC