My husband and I have taken over 15 cruises so this was not a first time experience.
First, the embarking the Radiance of the Seas at Canada Place was a nightmare. Three ships were sailing from the port on the same day so the shuttles could not park in their usual places. My husband walks with a cane and needed wheelchair assistance, but all the chairs were in use. We were told that we would have to wait 45 minutes to an hour for help. We decided to walk which was over a quarter of a mile up and down stairs and pushing past huge lines of people.
We finally got on board and headed for our cabin.