Doh...
Yeah ten miles isn't happening. It all makes sense now. I was thinking about all the pollution and stuff seemed like it might not be the best, but yeah ten miles out would definitely make for some good sand with a little bit of diving.
Now I have to decide what to do about sand for my tank...
My whole purpose of replacing the sand in the first place was to get red of those amphipods I mistook for mantis shrimp, but I don't really like the way the arag alive looks. It's too coarse for my taste.