All there is would be an "all-inclusive resort", which is "a holiday resort that includes at a minimum lodging, three meals daily, soft drinks, most alcoholic drinks, gratuities, and possibly other services in the price. Many also offer sports and non-motorised water sports and other activities that are included in the price as well." (Wiki)
So I suspect that a merely "inclusive resort" will be somewhat less than that.
Possibly much less!
Thank you both. I found the expression in a book called "Research Themes for Tourism", edited by three academic professors — two from UK universities, one from an American university. I did of course think of a sort of typo for "all inclusive", but then I discarded it as what is/isn't "inclusive" is usually the trip, not the resort. Obviously I considered "exclusive", too, but I'm afraid the context doesn't justify the use of "exclusive".