Traveling with your boxer can be one of your biggest adventures or one of your biggest headaches. The difference depends upon how much traveling your boxer has done as a pup and how much he has learned about traveling. Obviously, the earlier your boxer travels with you, the easier and more natural it will be to him. However, if you only take your boxer in the car to places he sees as unpleasant, such as to the veterinarian, it is unlikely that he will ever become a great traveler.