But is that just where wave heights rarely exceed 7 feet?
It seems like they would still need some kind of safe mode to deal with once per year/once per ten years conditions. Maybe the could fold up.
All the land above sea level between 1'-20' soon (relatively) to be usurped by the measurable volumes of ice being depleted already have lots of pipe and structural (piles and beams) infrastructure protected underground and may could be retrofitted to support the safe mode folding you are suggesting.
