Posted July 7th, 2018, 11:10 AM
More than 1 credit card and also a list of credit/debit card issuers phone numbers in case of loss/theft, photocopy or digital copy of passport details and travel insurance details. Not very interesting but very important if you need them.Add to that your EHIC card in Europe (at least for now!) and take it out with you. If needed on shore you will have to show it at the point of seeking medical assistance otherwise you'll be into private care - or so I believe. I've read that saying your card is on the ship and you can get it shortly doesn't cut it. Never been in that situation but it's made us careful to try to remember to take it off the ship when we go.
Also we take our driving licences as in some countries they say you need some official ID and if passports aren't specifically required, we'd rather take out driving licences than passports. (It's also useful if you're of an age where Senior concessions are available for travel, entry fees etc but some ID is required.)