Thanks to @Testudo for posting this information on the Trip Advisor Travel Forum.
The Margaritaville Resort on Grand Cayman now offers an all-inclusive option for food, drinks, and lodgings - diving not included.
In Grand Cayman, a New Kind of All-Inclusive Vacation
There are still a few dedicated dive resorts on GC that offer lodgings, diving and meals including: Compass Point (AI), Cobalt Coast (AI), and Sunset House (breakfast only) but none of them are (almost) on Seven Mile Beach like the Margaritaville Resort.
The Margaritaville Resort on Grand Cayman now offers an all-inclusive option for food, drinks, and lodgings - diving not included.
In Grand Cayman, a New Kind of All-Inclusive Vacation
There are still a few dedicated dive resorts on GC that offer lodgings, diving and meals including: Compass Point (AI), Cobalt Coast (AI), and Sunset House (breakfast only) but none of them are (almost) on Seven Mile Beach like the Margaritaville Resort.