Some people never get seasick. Others aren't so lucky and have to take special precautions. If you're one of those people, there are preventative measures you can take to avoid becoming seasick:

• Avoid greasy foods before a dive.
• Take non-drowsy motion sickness medications before you board the boat or begin the dive.
• Position yourself near the middle of the boat. This area has the least amount of movement.
• Look at the horizon. Motion sickness occurs when your body feels movement but does not see it. Viewing the horizon allows you to see the movement you are feeling.

If you become seasick while on the boat, vomit off the side of the boat on the downwind side, and do not dive. If you become seasick while underwater, vomit through your regulator, then switch to your octopus.