This goal has the following fine print specified by utf9k:
I have to book at least 5 consecutive days off to qualify as a "vacation"
The point can be marked as soon as it's booked, rather than necessarily when I'm embarked.
Intent is what matters most here.
Goal is set to 3 but understandably, vacations may be shorter or longer so this may be more or less reasonable depending on the length of the breaks.