Offshore the wind waves are superimposed on top of long ocean swells.
Its the combination of these two that can get to people who are normally
immune. Most people get used to it within a few days.


Sometimes just big swells can do it. Constantly going up and down like
an elevator... it's no wonder that this component of a ship's motion is
called "heave."

No-one is immune. It just takes the right day and the right night before.


Yep

John Cairns wrote:
I've gotten sick myself on several occasions-hung over. Like I said, I do
know someone prone to seasickness that never let it stand in their way, even
managed an Atlantic crossing. They loved sailing.
Again, a very poor excuse.


I've been very lucky, only seasick on a few occasions. One was when I
was on watch in a Navy boiler room, on the lowest level in the burner
alley. The ship was rolling about 20 degrees each way, and while the
motion wasn't too bad down there, watching the bilge water slosh back
and forth and back and forth made my stomach start doing the same. The
other times have been down below when the sea state was up a bit, closed
in the cabin, staring at the chart or trying to fix something.

Fresh Breezes- Doug King