Hi all! If you did the Discover Atlantis excursion ONLY (not the water park excursion - we'll save that for when the kids are older ), what time did you depart ship, and in addition, is there any flexibility on when you can head back? The disney web site says 2-4 hours, so can I assume that you don't have to wait for only ONE bus departure time back to the ship? Just trying to determine if we're better off taking a taxi and having flexibility to come and go as we choose. Thanks for any info you have!