Spring break is approaching, which for some families means relaxing getaways to the beach or mountains. For those with a high school junior, though, the week spells the arrival of another ritual: The Grand College Tour. Each spring break, thousands of prospective students and their parents descend on colleges throughout the country, trying to decide where to apply to in the fall. How can you a make the most of a college visit? Here, admissions experts answer the most pressing questions.