Thank you very much katrina915, Tiggerontheseas and especially Gramma of Boys. That is exactly what I thought - if it's a LeaveCam, I guess I will put the ship name as our residence, for the 3 hours it is in port before it leaves for Alaska. But what if they want an address? I guess I put Canada Place. It seems so silly and I am very glad that it is odds on that no-one will ask to see it.
I am very happy to show our vaccination certificates, and if they still insist, our, hopefully, negative test results.