I want to mention Mobility at Sea. We first came across them a few years ago when we decided that we needed a hoist on ships to carry out transfers from bed to wheelchair. We have an H track hoist at home fitted on the ceiling. Cruise ships are not yet sophisticated enough with their adapted rooms to have fitted hoists and mobile ones are required.
I investigated rentals and came across this company Mobility at Sea based in Waterlooville, Hampshire. I have to say they are terrific. They are reasonable in price. All their documentation is clear. As the date of your cruise gets nearer they contact you to check that you are still going and that your cabin number hasn’t changed.
When you arrive at your cabin the hoist is there with clear instructions and the battery fully charged. The company don’t just provide hoists. They supply cruise companies with both folding and electric wheelchairs and no doubt other mobility aids.
If you need any sort of mobility aid at sea I can recommend them.