has anyone done the xcaret tour with carnival from cozumel?

[worry wart]

Anyone who has done the tour to Xcaret from Cozumel with Carnival Cruise can you tell me what time you got to Xcaret, how much time you were able to spend there before having to catch the ferry back? Can you go back earlier on another ferry if you needed or wanted to? Does the cruiseline provide the bus to Xcaret from the ferry and is the charge for both included in the tour price? Thanks.

[worry wart]

Thanks for the information. So I guess if you go on the tour through Carnival you are able to take a ferry back anytime you want as long as you are back before sailing time? Just wanted to be sure because I have a son who sometimes has seizures and wanted to be able to bring him back earlier if he had a bad day and was tired and needed to come back to the ship earlier. Do you just take a cab to the ferry from Xcaret? Wondering also if you know if Xel-ha is a lot further than Xcaret or near the same area?