이 름 전자우편 홈페이지 제목 비밀번호 (최소 4자이상의 영문 또는 숫자) My family and I are going on a carnival Cruise soon, and I was wondering if we can still purchase a soft drink card after we have boarded the ship. Or do we have to buy it before we board? Also how much do they cost? Thanks for all your answers.. -Sharpie..