All these ideas are great and I've tried most of them at one time or another.
I found what works best for me are the 3 ideas most often mentioned--a simple, light meal the night before, a good night's sleep, and a Bonine in the morning.
However, I've also found that my sickness got worse as my stress level went up once on the boat. The stress wasn't caused by any fear/concerns about the dive, but more by all the controlled (and not so controlled) chaos you often find on a dive boat; coming aboard, finding your spot, trying to stay out of everyone's way, loading, configuring and stowing gear, suiting up, etc, etc. For some reason, my stomach would always start to churn during all the mass activity.
My sea sickness really decreased when I started to practice Zen and the art of dive boats. The more I stay calm, focused, relaxed, prepared, and watched my breathing (of course, the exact things to remember once you're under) the better I feel.
I found what works best for me are the 3 ideas most often mentioned--a simple, light meal the night before, a good night's sleep, and a Bonine in the morning.
However, I've also found that my sickness got worse as my stress level went up once on the boat. The stress wasn't caused by any fear/concerns about the dive, but more by all the controlled (and not so controlled) chaos you often find on a dive boat; coming aboard, finding your spot, trying to stay out of everyone's way, loading, configuring and stowing gear, suiting up, etc, etc. For some reason, my stomach would always start to churn during all the mass activity.
My sea sickness really decreased when I started to practice Zen and the art of dive boats. The more I stay calm, focused, relaxed, prepared, and watched my breathing (of course, the exact things to remember once you're under) the better I feel.