SPOP Day 2: Mandatory?

Hi all, I am an incoming freshman who’s going to SPOP 1 in a couple of days. I was wondering if the second day of SPOP is mandatory. I looked over the program/schedule for day 2 and there doesn’t seem to be anything super important happening, just workshops and stuff.
As for why I am considering missing day 2, my friend is leaving the country that day and I want to see him off at the airport (might be a dumb reason for some, but pretty important to me).
Sorry if this is the wrong place to post, and thanks in advance!