From my experience, seasickness can be countered by: Getting on the upper deck for fresh air Having a full stomach If all else fails, sleep Seeing the horiz

From my experience, seasickness can be countered by: Getting on the upper deck for fresh air Having a full stomach If all else fails, sleep Seeing the horizon vs focusing on a fixed point on the ship helps some people and harms others - experiment to see what works for you. The other thing I've found is if you let it get bad you'll be in trouble until you get ashore. Take measures to fix it before it gets bad. This might include drugs - I'd always take dramamine if sailing into bad weather. Also, everybody gets seasick eventually. Anyone who claims they don't simply hasn't been in a rough enough sea for long enough yet. There's no shame in taking care of yourself. One last trick - ships have a metacentre that they rotate about. Ask a deck officer where on the ship you can get closest to it - it's the point where the movement of the ship will be minimised.