profmason
Contributor
Crazy cheap flights on TUI from London direct to Cancun. Would catch that. Take the ADO to Playa del carmen and do some cenote dives. Take the ferry across to cozumel for several days of great diving and food. Take the ferry back to PDC and then the ADO down to the border (a day stop in Bacalar is nice before crossing the boarder and taking the bus down to belize city to pick up the liveaboard. On the way back, bus from belize city to cancun to return. (I think there is a 7 pm bus that gets you there the next day)