I'm not a cruise ship nurse but got REALLY sick on a cruise this past fall and spent some time with the nurse then a couple of weeks in the hospital in FLA after being taken off the ship by ambulance. I was on a "nursing conference" with some co-workers. We asked the ship nurse some things and she used to be ICU she was not from the US. She said it wasn't all it was cracked up to be but it was ok. She worked shifts and took call with another nurse and there was a doctor onboard they had to call at night. The sick bay is down in the bottom where the sea was really rolling. There wasn't a helipad on the ship I was on to be taken off so I just had to be sick for 12 hours getting worse every hour.