I copy and pasted from the Mizzou website because they explain it better than I could
"Tiger Walk and Tiger Prowl
Established in 1995, Tiger Walk takes place each August before classes begin. To symbolize their entrance into Mizzou, the freshman class meets and walks through the Columns toward Jesse Hall.
Tiger Prowl is the corresponding event for seniors upon their graduation. Though their studies are completed, this walk through the Columns does not symbolize their leaving the university. It symbolizes the enduring connection that they will have as alumni."
It's a really fun tradition.
Hmm.. what's your favorite tradition around the holidays?