When in college, the most fun you will have is playing Lava tag. Find a playground you can walk to with a moderate to elaborate setup and pick a person who is it. The ground is lava, the play ground equipment is safe. No rules on how you climb it or maneuver it as long as you don't touch the ground. Try not to break anything (or hurt yourself) and you will have a blast. And just in case it wasn't obvious, the person who is it is a lava monster and has the ability to go anywhere.