Many rising high school seniors and their families attempt to combine summer vacation traveling with college visits. From a logistical point of view, this makes sense. Parents' free time is limited, especially in those households where both parents work. Planning a summer vacation excursion that includes routes through possible candidate colleges can be a fun project for the whole family. The important concept, though, is to have a primary vacation goal.
The question that needs to be addressed is: Is our vacation going to be a college-visit-oriented vacation or will we have some other goal (such as visiting relatives, the beach, Disney, etc.) onto which we will tack some campus stops? If the family includes younger siblings, perhaps the college-visit vacation plan is the less popular idea. Try to picture an 8-year-old getting excited about looking at dorm rooms, libraries, and science buildings.