If you haven't already or you are starting here, please read all the information posted in the description of the 1st hide in this series (Kev's Containers No. 1 : Masonvale).
This cache is on the riskier side of being spotted by muggles, as it is hidden around lots of buildings with dorms and classrooms. Strongly recommend finding this cache late at night, but being a daredevil also makes things more fun.