We have been a few times with MSC Yacht Club out of Barbados. Assume you have an independent flight i.e. not arranged by MSC. If so, you will be allowed to delay your departure off the ship as a perk of YC. We would go to Carlisle Bay for the morning or just walk around Bridgetown, returning to the ship for a late lunch before taking a taxi to the airport which will take about an hour if traffic is bad. Book into the Executive Lounge (£22/pp), well worth the extra cost as Barbados airport can be a madhouse