Margaritaville Island Reserve by Karisma Riviera Cancun This 148-room all-inclusive Mexican Caribbean beach resort was the first-ever all-inclusive Caribbean resort by Margaritaville when it opened in the summer of 2020, the product of the aforementioned alliance with Karisma Hotels and Resorts. It’s home to all of the Margaritaville concepts you expect, along with special eateries like Rita’s Taco House, home to a broad tequila and mezcal bar, tacos and regular entertainment (including Mariachi-themed evenings).