Ahoy ;- "motion sickness" I agree take qwells, no alcohol, look at the horizon, bring lots of water and food.
Motion sickness or 
kinetosis, also known as 
travel sickness, is a condition in which a disagreement exists between visually perceived movement and the 
vestibular system's sense of movement. Depending on the cause, it can also be referred to as 
seasickness, car sickness, simulation sickness or 
airsickness.
Dizziness, 
fatigue, and 
nausea are the most common 
symptoms of motion sickness.
Sopite syndrome in which a person feels fatigue or tiredness is also associated with motion sickness. 
Nausea in 
Greek means seasickness (
naus means ship). If the motion causing nausea is not resolved, the sufferer will usually 
vomit. Vomiting won't relieve the feeling of weakness and nausea, which means the person could 
vomit until the cause of nausea is found.
Medications either calm the nerves of the inner ear or soothe the brain’s vomiting centre. However, most motion sickness pills are only effective if they are taken before you feel sick. In many cases, motion sickness pills can induce drowsiness as a side effect. You may need to experiment with the different drugs available to find which one works best for you. Ask your doctor or chemist for further information.
Research suggests that
 ginger can help to ease the symptoms of motion sickness. You could chew on raw ginger or make a quick tea by adding minced ginger to boiling water.