MiniMoon
Cunard, not as posh as you would imagine. Two formal nights on our cruise, but they aren't compulsory, you can eat dinner in the buffet. You don't have to take part in any of the activities or excursions if you prefer not to. We were on Queen Mary 2.
We went on a 7 night Norwegian fjords cruise with a company that no longer exists. Very relaxed, we loved every minute.
Do give cruising a try, it spoilt us for any other type of holiday.
We did exactly the same cruise, although we booked direct.
Wonderful food, nice cabins, lots of things to do - and actually I got quite bored because I am very bad at being contained within one establishment. I wanted to eat out and walk out at will.
Do not take this as a criticsm. DH and DD loved it but if you are the kind of people, who like to go out spontaneously, explore local cuisines. get in the car and drive to visit remote small historic sites - and I am one of those people - it is not for you.