Am looking for a place in MX or the DR with a good AI program that has nice beaches, ready availability in RCI, and is safe for the 19-25 year old age group to be left on their own. Am looking at Riveria Maya, Cozumel, Mazatlan, Manzanillo, in MX. (LaRomana or Cabarete in the DR). Any other ideas and/or any input on any of the listed areas would be greatly appreciated. Thanks/