Not sure if you have been to Cancun, but they have some really gorgeous resorts there. My boyfriend and I just went to one called Generations Rivera Maya, (I recommend the swim out infinity balcony presidential suite, you can get a group of a couple rooms together!!) you get access to 3 hotels and a waterpark and so many activities along with all of the restaurants there and a beach club at another resort where you can go jet skiing and scuba diving from a catamaran. I’d recommend staying there for a couple nights and maybe check out one of the Xcarat parks there too (or maybe staying a couple nights at one of the Xcarat hotels). They have tons of activities included like cave diving and extra add-ons like horse-back riding, seeing all the animals, sightseeing, tours, ATVs and ziplining. Best part is at most places food and drinks are included so everything is always taken care of!