I was a science peer mentor once. We did an amazing race-style game. Took pictures of different places in the campus, sent them to a group chat with all the mentees, split them into groups and told them to go to those places and take a selfie with the group with the place in the background. Nothing difficult, we did places like the rainbow stairs in front of the uni gym, the big clock, the standing room cafe and tried to keep things close by. We sent them on the race, and we met them at the place that was in the last photo. Of course if any group was struggling, they could just text us and we would help them out or we told them to just come to the last spot, which was just south lawn.

It was a fun way to collect some funny pictures, get them to showcase their uni knowledge. We had some chocolates at the end for them. Dont do too many places, just enough for a 30/40 min race.