The technical and practical difference is that a webpage is a single document on the internet under a unique URL. In contrast, a website is a collection of multiple webpages in which information on a related topic or other subject is linked together under a domain address.
With a website containing multiple webpages your visitors can navigate to the topics you want to promote and the information you want to publish. You can have different pages for example for your menu, the different services you provide, the different packages you sell, different pages for the types of rooms with details and pictures, pages explaining facilities, etc.
Basically a website means more space for more pictures, text and videos and we can customise the website with your own branding, your logo, your own colours, and more.