Photograph: Lee Pellegrini

Midafternoon in the Admission Office lobby, Devlin Hall, Friday, July 20: Four times daily in the summer, admission officers join with panels of Boston College students to host information sessions for campus visitors, which are followed by student-led tours. June, July, and August bring 200 to 800 visitors a day, with August logging the summer’s heaviest traffic. But the year’s peak volume days are Presidents’ Day in February, Veterans Day in November, and the Tuesday after Easter, each of which can draw a crowd of 1,000 to 1,300.