The Excellence Riviera Cancun in Mexico. It's near Cancun. We just got from 8 days there and my husband didn't get glutened once. The staff was sooooooo accommodating and went out of there way to help us. The chefs came out to talk to us. They made sure what he had was safe and prepared things special for him. We emailed the concierge daily to let her know where we would be eating and the restaurants were prepared for us. They even had gluten free bread at the buffet. We were also able to get room service. We will definitely be back. Incredible! Message me if you have any questions.