They pick the resort for you, and you find out about 2 weeks before departure where you are going. You can eliminate 1 resort from their collection to help narrow down the choices. There are many three star, first class resorts available to you in the Cancun area. Cruises are great options for a honeymoon. In fact, when I got married in 1999 I took a 10 night Caribbean cruise with my wife and loved it.
Cruises are slightly different than all-inclusive resorts.
Cruise quotes cover the cruise, room, meals, entertainment. Drinks are extra as are tours off the ship. Airfare is additional. Airfare is additional. The sister ships are over 1000' long, that's over 3 football fields, and each boasts a rock climbing wall, ice rink, four story promenade, three tier dining room, sports court and skylight chapel.