Taking images of wrecks is fun, but is difficult to show the size ratio. That's why it is always better to include a diver or two in one of your frames so people can see the size of the wreck. Unless your main subject is in close range, don't try to use a flash on a wreck because the only thing that you are going to acomplish is backscatter.
I took this image at the Carthaginian, a new shipwreck in Maui Hawaii.
