Looking at a stop in Nassau, but want to save a little bit of money and use a third party excursion company. I know Disney guarantees that you will be back on the ship if you use their excursion, but we can save a lot of money through another vender (We are on a somewhat tight budget). Has anyone used one, and what was your experience like? My biggest concern is getting back to the ship on time. Because we also want to make an alcohol run for our stateroom while we are there 
