I'm pretty sure they set up the boat briefs for sleepaboards first thing as a matter of course. The last two trips, the briefer, (Chris, same guy each time) has essentially woke me up at 8:30 or thereabouts.

I'm also fairly sure that, technically at least, your charter doesn't start until 11:00. However, once the boat brief is done you can pretty much head out at your convenience.