I did my first dive in Aruba about 5 years ago and I have a shirt that says "Scuba Aruba". The antilla wreck was murky but the spot we went to with Mermaid divers had good visibility. Got clear shots of an eel at 40' with a disposable Fugi camera. I don't think Aruba is really known for it's diving. Most divers take a quick plane ride to Bonnaire which reportedly has great diving. I found Aruba a fantastic vacation spot-clean, safe, and entertaining with really good prices on diamonds. We went back again two years ago. Hope you have a great time!