i am a huge beliver in the ginger remedy, It works great for the mild queezies and doesn't leave you with any kind of "weird" feeling.
The Sea Bands work great- its accupressure
I would pack the Bonine as a back-up just in case, take it at night.
Just know that the ships have wonderful stabalizers and chances are that you won't even need anything.
Get outside into the fresh air and do something physical- take a walk, go for a swim, whatever, this helps greatly, also keep some carbs in your stomach - bread, rolls, crackers, things like that work great as a preventative.
Do not combine remedies.