I took my own Hairdryer and diffuser as I have curly hair and I was distraught on the first morning when I plugged them in with the adapter (US Style) and there was not enough power to work them......so I was stuck with the hair dryer in the bathroom trying to scrunch dry - I dont therefore think that there would be enough power to work striaghteners either??? but not too sur.
Hairdryers are reasonable-I'd say medium powered-and yes you can use straighteners, and you dont even need an adapter either.Go girl...I'm assuming you are a girl anyway!This is with the Princess line by the way.
Ive done island cruises hairdryer ok just like ones you get in hotels on wall you can take your own but you do need adapter american style one enjoy your cruise bye the way i take my iron as well hide under bed.
I travelled on island star in june 2008. i used the hairdryer in the bathroom which was ok but got very hot to hold so i let my hair dry naturally and just finished it off with hairdryer. i took straighteners and used them no problem but u do need a us adaptor.