The ship to shore calls start at $12/minute. We take our cell phone and just use it while in port. You will need to check with your wireless service to make sure that they
take off the restriction to use your phone in the islands. Depending on where you are going this can be very inexpensive. Watch the calling cards...in some ports it is very confusing to use them (which is what they want) and you'll see those 10-10 numbers or a tollfree number to use to connect your call. When I did that and got home they had charged me $120 for an 11 minute call. Plan ahead is my best advise.