On a tribal for the Cod wars in the 70's at 16 my first sea time, we were told to expect roughers, I thought this is OK, we were still in Forth, once we cleared land oh boy was I and many others sick, for about a week, after that, became kind of fun, living on a roller coaster that was always moving, I luckily did not suffer sea sickness after that, we saw some big seas up north as for the trawlers sod that, we had to stop one time and our ships divers cut a trawlers nets from its prop, good job we were there, but stationary in a very heavy swell was not nice?