Milo's directions are perfect. Its not the Andrea Doria, but it is a little over 150 feet long and like 70 ft wide, with a hull that's basically a big flat hollow box with about a three-four foot gap between the work-deck and the water side of the hull. In bad viz it can be hard to tell you're on it because you may be over the flat deck and mistake it for bottom. There are large cat heads (those posts you tie docking lines to) at each corner, so you can use those to define the limits of the site. I always knew i was close when I'd start seeing sheepheads. Also, the 3ft diameter concrete piping the barge was carrying is scattered around the site so you may see that first. I like this site for a shore dive of a different flavor.