I can't make out the entirety of one of the lines, but in the fourth verse, "ashore" is rhymed with itself ("Alas, I had no luck... for I'd left all me money ashore / It was then that I wished that I was dead or safe with the girls ashore"). To some degree, this gives the impression of remaining static and contrasts with the other verses, most of which end with "go to sea once more."