My only advice for Acapulco is be very very careful. Like so many big cities in Mexico, it has spectacular resorts; but it also has grinding poverty that will break your heart, and it also breeds crime. You need to observe all the rules you've always heard about how to stay safe in foreign countries.
On a positive note, sailing into and out of Acapulco Bay is one of the great cruise experiences . . . .don't miss it!