I got my OW through Florida International University. Our training was great but because it was a 3 credit class the book work was about as intensive as it can get for diving, which I believe not to be that difficult. Those who passed the lecture, and yes some failed, had to go through the open water dives. There were people from all over the nation in my class, NJ, NY, CA, UT, CO and so forth. Some of those people got so terribly seasick in two foot chop that it wasn't even funny. It also seemed to be contagious because after the first one hurled the second and third weren't to far behind. Amongst the individuals who did get certifed (yes, some got washed out in the open water dives.) a few did end up quitting not because of the diving but from just not wanting to deal with getting seasick. There are drugs such as Dramamine which help a lot but those individuals who haven't touched the water since just can't deal with being on a boat, not the itself. I personally would face any rough sea just for the mere opportunity of getting in the water, then again I don't get sea sick. Those who quit just figure that the Cost exceeds the benefits.