Has anyone done Cancun with severe autism? I am a travel advisor and I am an certified autism travel advisor but IBCCES (the certifying agency) doesn't show anything in Mexico. I know Karisma resorts are autism double checked and we are staying there for half our trip but I was wondering about "excursions". We are going to do Xcaret park and I feel pretty good about that but has anyone done anything else? I was looking at the Cirque show but we also have allergies so we are difficult!! We spend a lot of time at Disney and Universal because even though neither are certified they both accommodate well with allergies and autism so I am hoping there are some suggestions for the Cancun area. BTW he is 12 and severe, minimally verbal and often makes loud sounds with dairy and egg allergies! WE are also traveling with our NT 15 year old so something he might enjoy too would be better!