It depends on where the individual feels more comfortable but the rule of thumb is down the bottom right exactly halfway along the ferry. This is the point of least movement and if the sea is rough you don't want to see outside at all.
alternatively, I find it's better to be looking at the sea: if you can see the swell coming, your body is able to ready itself for the pitching and tossing. And if you can be outside in the fresh air rather than inside with recycled stuff, that helps too. For least movement, I suppose somewhere dead centre is best.
For me, the best position to be in to avoid sea sickness is on dry land. If I absolutely have to travel by sea, it has to be lying down on a bench or sofa in the first class lounge, with my eyes firmly shut against seeing any sort of movement of the sea and drugged to the eyeballs with Stemetil.
Oh, and apparantly, those people with perfect balance are usually the ones who suffer the worst with sea sickness. So, if you find it impossible to stand stock still on one leg, you should be fine. Me, I can stand for hours on one leg without a single movement, but put me on a boat, even on a glassy, still day, and it's 'Puke City, here we come!'
A couple of years ago I sailed to the Isle of Man. It was rough!!! We were the last boat to sail for 2 days.
Just as jno says it was much better to watch the sea. I didn't feel sick at all. The attendants were wearing rubber gloves almost the whole journey carrying sickbags and saying " Oh that's full would you like another"
Absolutely agree with jno. I used to drive to the continent every week, so when the tunnel was out due to the fire, that meant 2 ferry crossings a week minimum. The best way to overcome seasickness is to sit by the window and watch the waves. If you see the waves coming, your brain can understand where the movement is coming from, so it won't get confused. I have told friends about this technique and everyone agrees it works.
After doing the Aberdeen to Shetland crossing in November, I discovered one of the worst things to do is lay down, and don't drink any alcohol! I tend to find that sitting still, if possible facing the same way as the ferry is going and trying not to look around is the best solution.
Tried laying down on the above crossing and was very, very ill. Then again, the boat was around 45' and the air con didn't work too well. Oh and those wrist band things don't work! :)
Do you get use to travelling on a ferry after a while - few weeks/months on a ferry? To the point you get use to the movement - have less sea sickness. Anyone experienced this and that has sea sickness in the past.