Hi Malcolm,
I'll address all your questions in one reply....
You are on the right lines for the departure times... Travellers are required to be at the airport to return back to the UK about 3 hours before departure. Depending on traffic it can take up to 90 minutes to get to JFK. The TM will advise the group what time they need to be back at the hotel for, for coach pick up.
You will have to vacate the rooms, and where porterage is included, these will be collected and put into storage until the group is ready to leave later on in the afternoon.
The Circle Cruise could be on day 12 or day 13. It is dependant on local conditions and the TM would advise the group of when this is likely to be when you arrive in resort. It it helps with your planning, it lasts around 1.5 hours.
Finally, the Tour Manager for this departure is provisionally listed as Yvette Barnett and she will be travelling from the UK with the main group.
Kindest regards,
Julia