I remember looking at a Dashew's powerboat design that had an air intake that minimized the salt
spray in the air going into the cabin.  Are there guidelines for how to let in some fresh air
while minimizing the saltwater that gets into the cabin?  I think with lots of solar we
will run the AC most of the time, but we would still want some fresh air and perhaps in
some locations fresh air is all we would need and not AC.