As a boat captain, one of my responsibilities a few times a week was Park Clearing. We used to wait one half hour before starting at American Adventure. From there, 2 teams of 2 proceed out to Japan and Italy respectively and clear out WS. The fire barge used to go off anywhere between 40 min and and hour and a half after park closing, depending on whether the pyrotechnics crew or Cptains were done with their duties first. The Friendship boats and ROE barges all have to go under the China drawbridge so timing always was a bit of an issue. The barge does go off every night though because it can't be moved back behind China to the docks until all the gas is burned off. Park Clear usually took about a full hour but usually longer, because we had to wait til all the restaurants were empty. All 4 of us Park Clearers would then meet back up at Showcase Plaza and then would continue a sweep up through FW to the front gate. The minute we gave the closing park manager the all clear, the overnight maintenance and custodial crews would literally fly through the side entrances and start prepping for the next day. While, as a guest, i love the feeling of being in the parks after everyone's filed out, as a CM, it's completely different. I tried to remind myself of how exciting it feels as a Guest, but man, when you're a CM trying to get home and a couple is taking pictures in front of every country 2 hours after all attractions have closed, it's quite a test to "keep the magic" going!