Travel by sea. Haicheng is a staff member who provides services for tourists on passenger ships. The nature of work at sea is similar to that of flight attendants, but on cruise ships, they not only provide catering services, but also are responsible for the entertainment, tourism, culture and leisure of cruise ships. The cruise ship has a large space and is equivalent to a small community. Therefore, seafarers need to have comprehensive service skills to meet the various needs of tourists.