The ships should not be exclusively for the elderly. There should be room for their children who would like to combine a cruise with a visit to the folks.
hmm you used to be able to get a deduction for your RV if you lived in it a certain # of months per year...maybe they can do a time share type thing... live on board during the cold months...and get the deduction
And hot chicks too. If there are lots of hot chicks, I will come visit too.