They obviously need to make back some time to get ahead, especially with the van tour giving them an extra day too. Maybe this is the journey home?
They should never have gone on this trip, all they have done is be uncomfortable whilst doing exactly the same as they have before, and will do again next year. They could have easily missed out this year, done some days out closer to home and done their walk down memory lane some other time. Does anyone really need to reminisce about just 3 years ago, it's usually a much longer timeframe, especially if life is much the same as it is for them.
Chris and Sarah can only put themselves first, they don't care about what is best for the children and Chris doesn't even care if this is safe for Sarah. They go through life thinking they can do whatever they want, and it's gotten them to a stage where they have to keep their children isolated, they have no friends and are on the run all the time. That's no life and I'm happy to have no holiday but a safe home and friends that are there no matter what.