We had "hoped" to be able to do this but it didn't happen and needless to say we had some unhappy campers. We were on the 2005 Turkey Sailing and the weather ran us afoul. We arrived at port earlier than expected and I didn't realize that there was some fine print in there that stated that if we arrived earlier the tour would leave earlier. We had already had plans for our in-room breakfast that day at a particular time. The port was a mob scene and it took forever to get to the meeting place. We did, however, arrive in time for the time that we "thought" we were to leave - 11:30. Whoops, our group was already gone. So we had to sit and wait for another group to arrive for about an hour, this group had special arrangements with the guide which led to a longer story than you want but basically we arrived back in time to run to the ship. Hope your experience is better!