I posted the same question under Marco Island Forums; My wife and I staying at the Ritz Carlton Naples for a work trip May 22-25 and are looking to extend our stay two nights (Thurs and Fri) by exploring either sanibel or Marco Island. Which would you choose, and where would you stay on that respective island? We love the beach (we would prefer soft white sand to all the shells), and want relaxation, but not to be surrounded solely by senior adults (we are in our early 30's) as we have heard Marco tends to be. We don't want to pay for another Ritz Carlton, but something clean and nice. Thanks for any advice!