The "shadow a cadet for a day" visit is very valuable. I've escorted candidates and appointees a few times. Upon arrival, the day's candidates/appointees/parents meet with admissions, and then around 9:30am the parents separate for a tour while the candidates go to the library to meet up with their cadet escort. The candidate goes to the cadet's classes and lunch, and then returns to the parents around 3:30pm.
To see a better representation of 4th class cadet life, I recommend shadowing a cadet before recognition in early March.