Can anyone advise on which Cozumel beach would be best for my wife and I with our 4 year old daughter? We have Captain Marvin's already scheduled for Grand Cayman. My daughter is pretty comfortable in the water, but really not able to swim alone. I have read various posts about Chankanaab, Mr. Sancho's, and Paradise Beach. Does anyone have any recommendations, or recommendations for other activities in Cozumel with a child that age?