My SIL and I dropped the kids off at the Pirate Cruise and then mosied over to the
DVC desk (I wanted to show SIL pics of other resorts). We had originally planned to pool-hop at the GF, or maybe do a spa treatment, but elected instead to just have an excellent, leisurely brunch in the GF Cafe! Our DHs stayed back at BW and had a leisurely morning sans kids or wives (well, sort of... they had a 8 mos old baby with them, but he was good as gold, so not a big issue there!) After our brunch (I had great french toast; I think she had an omelet or maybe eggs benedict?) SIL and I wandered out towards the marina, sat under a shady umbrella and waited for the "ship to come in". You won't want to miss that, BTW -- it's so cute to hear them coming back, singing with gusto!
Personally, even though they gave me a pager and I had a cell phone on me, I just didn't want to stray too far, but maybe that's just me. I had all 3 of my kids on the boat (ages 4 , 8, and 9) so I figured my "odds" of having any issues were statistically higher, perhaps! It's less time than you think, by the time you finally wave them off and leave the marina area to when you're supposed to come back. And as always, time flies...
Wish I had some of that French toast and coffee right now...