Having had a cough and felt unwell recently I'd certainly take some masks to try and protect yourselves, your immune system may still be a bit weak but you have another week so you may feel on top of the world by then. Enjoy what sounds like a luxurious cruise.
I've just come off a cruise with my 96 yr old mum, some people were wearing masks (mainly Japanese but not solely). I took masks , gloves, & sanitizer .. we never wore our masks but glad we took them.
Mmc123uk I hope you both enjoyed it. There were a couple of 85 year friends on our recent cruise who said it was the best way to travel at their age, but 96- that’s a great achievement.
Go and enjoy yourselves. You're considerate enough to have tested for Covid and are negative. Take your masks with you and if you feel uncomfortable you can always wear them in the crowded parts of the ship.