I am a fan of IZI and have been there when they have had anniversary and birthday dinners. They do it in style and are very attentive to your needs. However, if I was celebrating such a special occasion, I would have the dinner catered and enjoyed at my condo or villa or choose my menu and have Dreams take care of all the details right on the beach. I realize you are asking for the Dutch side, but Dreams is not that far away and the experience is worth the short drive. We have celebrated anniversaries there in the past and all were wonderful!