If it's a Royal Caribbean card, will it be accepted everywhere or just on Royal Caribbean vessels?

Travel protection features of Visa credit cards vary, depending on the card type you choose. All Visa credit cards offer standard benefits and security features like Travel and Emergency Assistance Services where you can receive help in finding a referral for medical, legal, and transportation assistance. This service is accessible for Visa cardholders from anywhere in the world at no additional cost. Lost/Stolen Card Reporting and Emergency card replacement & emergency cash disbursement, Auto Rental Collision Damage Waiver and Zero Liability on unauthorized purchases are available for all...

Visa prepaid & credit cards enjoy worldwide acceptance and recognition. But to be able to use your Visa card effectively during your trip, you should notify your bank and inform them about your travelling plans. Make sure you know your card daily limits, how much you can spend or withdraw from an ATM outside of U.S. To be able to withdraw cash in a local currency from an ATM you should know your PIN, make sure you remember it and remember that you should never write it down. To be able to report stolen or lost cards, or contact your customer services in case of problems, if any, it is...

These are cards (either credit or prepaid) branded Visa issued by many banks and credit card companies and accepted globally at millions of locations. Note, that Visa, one of the most recognized credit card payment processors, doesn't issue cards but cooperates with different credit card issuers. Different banks and credit card companies issue Visa branded cards with different features.