The term CRUISE SHIP AMENITY can be summarized as a SPA, which is a three-letter word. A SPA is a facility that offers various health and beauty treatments, such as massages, facials, and body wraps. It is often found on cruise ships as an amenity for passengers to enjoy during their voyage. Spas typically offer a variety of services, from relaxation to therapeutic treatments, and are designed to help passengers relax and rejuvenate during their cruise.