Final answer:
The purpose of using various promotional materials is to inform and encourage guests to use the property's facilities and services, leading to an enhanced guest experience and increased revenue.
Step-by-step explanation:
The purpose of using guestroom guest service directories, restaurant tent cards, lobby display cards, elevator cards or posters, bulletin boards, and other promotional items to promote the property's facilities and services is to provide guests with easily accessible information about the amenities, activities, and services available at the property. These items act as marketing tools to enhance guest experience and encourage the use of services offered. For instance, placards placed near SCUBA diving and whale watching enterprises serve not only as informational guides but also as subtle advertisements, prompting guests to consider purchasing those services. Similarly, dive center receptions holding informal public awareness sessions and the distribution of advertising material are strategies employed to boost engagement and revenue.