We actually would avoid Ixtapa altogether...just more resorts and commercialism. The ships tender into Zihuatanejo, a peaceful, picturesque fishing village. They have built a nice 'boardwalk', concrete actually, around the bay. The hawkers are not allowed to bother you on the street or on the beach, they must stay in their stalls. One of our favorite ports. Manzanillo is no great shakes, but everyone should go to Acapulco...once. Do see the Quebrada cliff divers.