My wife and I recently visited the number one shell hunting beach in the US, Sanibel Island, FL (as picked by Coastal Living Magazine). I read that Ponce De Leon named this island "Costa de Carocles" (Island of Shells). It’s easy to see why.
You don’t have to be a shell enthusiast to be amazed at the quantity and diversity of shells on this beach. I made the mistake of asking a local if all the shells would be gone if waited until after lunch. I understood his look when I got to the beach. Shells covered the beach, inches deep in places.