I've been wandering out the different (honneymoon) resorts offered on the Marriott website : https://www.marriott.com/resorts/hotels.mi. I mention honneymoon resorts as the link to the honneymoon registry is right next to it.
I should say I was not really totally impressed. Does Marriott have locations with private villa's. Intimate beach houses in the water... that kind of really exclusive properties where you sink into luxury?