My wife and I are going on a 7 day Carribean cruise. We have a few questions concerning the use of our iPhone 6 cell phones during the cruise.
1. Can we use our iPhones on the cruise ship?
2. Can we use our iPhones on shore at the ports of call?
3. What are the charges we will incur if we use our IPhones on the ship, or on shore?
4. What are roaming charges, and how can we avoid them?
Thank you for your help with these questioins.