Me and my DH, and DS are going on the 7 night Western Cruise on Sept. 13, I wanted to send home postcards from each of the ports. I thought it would be a good way for us to think back on the cruise once we have gotten home. I know I can do it from Castaway, but I am curious about Key West, Grand Cayman and Cozumel. Have any past cruisers done this?