Thanks for the explanation. The only thing I could recommend is talking to his physician to see if there are any reasons he couldn't cruise due to his medical condition. There is a medical center onboard and I'd be sure to take out the vacation protection coverage that does cover emergency medical evacuation. There are medications, such as the scopalomine patch or non-drowsy dramamine, or more natural seasickness remedies such as ginger or sea-bands..that's another question to ask his physician though to prevent seasickness so he doesn't have an emergency like you described. ---Kathy