These are port information sights for Acapulco, Zijuatenejo and Ixtapa. I printed out the info, bound it at the office and took it on the cruise with us for some prep reading during the sea days.
At any rate, here are the links:
Great Ixtapa/Z site for general info:
Manzanillo Sights to See:
And finally, yeah, I'm sure Carnival will offer this shore tour in Manzanillo: