we found big sheets of rusted metal that had washed up. I had quite an imagination so i was saying it could be from a submarine or something hehe. It was when I lived in Charleston so who knows what it was. It was kinda cool though.
I live 2 blocks from the beach, so I've found plenty...horseshoe crabs and those freaky arthropods are probably the weirdest animal life I've found...and man-of-wars...my mom has played with babt sharks in tidal pools, i wouldn't go near them, haha...and she has found an alligator on the beach...