Royal Harbor Real Estate - Naples Luxury Waterfront Homes & Estates for sale in Royal Harbor with Posh International Properties Florida, Naples Luxury Realtors. Royal Harbor is located on the corner of US41 and Davis Boulevard and from the waterfront on Naples Bay. Royal Harbor is a community of upscale single family residences, many of which are new or have been remodeled. Most of the homes are located on the many direct gulf access canals and some are directly overlooking Naples Bay. Royal Harbor is a true upscale non gated boating neighborhood located right at the heart of Naples. Just minutes away from fine dining and exclusive shopping on 5th Avenue South and 3rd Street South in Olde Naples.