I go to Aruba and here is how I do it. First I do not do all inclusive. I have a little cooler for my Ice tea and diet soda which I stock daily from the local store. I find a spot on the beach away from the bar. The waiters see the cooler and don't bug me for drinks. Evenings are exploring and eating at the great restaurants. While there is alcohol at the resturants the food is so good it doesnt bother me. Days are the beach or tourist stuff that doesn't involve alcohol. Vacations are tough but with a little planning it is not hard to avoid alcohol