I really love sea days, also.  The best French Fries that I ever had was at the Dive-In poolside on the ms Amsterdam.  They are made in house.  Fries served elsewhere are prepackaged one brought on board and cooked on the ship.  There was a world of difference between the two.  Sometimes, I would go to the Dive In and just order the fries. The fries are so crunchy and well seasoned.   It was worth it.