Hilo-take a trip to the volcano, Honolulu-loads to do-Airzona, Punch Bowl, Haunaumah(sp?) Bay, Blow Hole, North Shore, Pineapple Plantation, Kauai-Helicopter tour, Maui-Holeakula (sp?). Have a ball!
if you click on the "Find" tab at the top of the page, then enter the name of a port, you will find all kinds of information, including suggestions for shore excursions.