I am pretty sure they can be opened. We booked 2 balcony rooms and when we got there they had moved one of us and we were no longer next to each other, but I think they looked just like the other trips we had taken and opened the enclosure. That was just the start of a nightmare cruise that ended my husband's travel with carnival. I am trying them again after a 2 year hiatus. It was our 3rd cruise with them of the year.
