Curious about "Trading Places Pass for one day"....

Can anyone who has done this fill me in on how this goes down? I understand it's subject to availability and reservation required 24 hours in advance. I'm just curious as to what time you leave to to other resort, how long you stay AND how do you get there? We would be going from CSA to CN for the day.

I'm excited to hear what y'all have to tell me!