Hi JanN1, and welcome to cruise-chat.com!
From the information you've given, it sounds like you're going on Norwegian Star to Acapulco, Zihuatanejo/Ixtapa, Puerto Vallarta, and Cabo San Lucas. Is that correct?
We've been to two of these ports (PV and Cabo San Lucas). Of these, we went to a beach in Cabo San Lucas, but that was through a cruiseline tour, as it was our first visit. What are some of the places you've decided on visiting?