If you are travelling on a date other than the official school arrival and departure dates shown in the list, you can pick the date from a calendar.
Scroll to the bottom of the list of dates and click the button “Any date not shown above”. This brings up a calendar allowing you to pick any date you wish.
You are then asked whether this is in lieu of (or in place of) the official travel day, i.e. are you leaving a day or two early for the holidays? Select the official travel day from the list, or select “None of the above” if your travel is not related to an official travel day.
Proceed with the booking in the normal way.
We have recorded a short video walk-through of how to do this.