If a court order allows for "vacation time" it generally means a time for relaxation or recreation. While people often use the word "vacation" colloquially to mean to travel somewhere I agree with the first answer given by my brother attorney. Unless it is specified in a court order that the vacation time referred to MUST be time that is spent away from one's home then it is unlikely that a judge would find that vacation time has to be spent taking one's children somewhere other than his or her home. Regrettably, an order should normally state that parenting time on major holidays takes precedence over weekly parenting time and vacations.

Yes, it is something that you need spelled out in the Court Order to prevent issues now and in the future.