Within RFID cards used on newer ships are a chip and wires woven in a pattern. The wires are a critical part of how RFID cards work. If your attempt to punch a hole and you hit either the RFID chip or the wires it renders the card useless.
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Never have anything in your back pockets, as this makes it very easy for pickpockets to target you. Some prefer to have fanny packs in leu of a crossbody during their shore excursions, which can be a great solution for carrying valuables and keeping money in a safe place.
Bring your own water bottle and travel coffee mug to take advantage of the unlimited refills and to make it easy to walk around the ship without spilling your beverage. If you forget your coffee mug, don't worry, they have a coffee shop on board with specialty coffees too.
The stateroom keycards are the only accepted form of payment onboard Norwegian Cruise Line ships. While checking in online before your cruise, NCL will ask for a credit card (or debit card) to hold on file. This method of payment will be linked to your account, and therefore to your stateroom keycard.
We highly recommend paying for anything OFF of the ship in cash. Port areas in tourist areas in the Caribbean and Bahamas are typically safe from violent crime, but petty crime like theft — or credit card fraud — could happen.
In the same way, if a person doesn't have a lanyard, they can be stopped and questioned, even possibly thwarting a threat. They are also quite convenient. They double as an ID holder. In the past, students had to keep their ID in a wallet or just loose in their backpack.