According to Wikipedia
A shell is the hard, rigid outer covering, or integument, of certain animals. More specific scientific names include exoskeleton, carapace, and peltidium. A shell may be made of nacre (a combination of calcium and protein), chitin, bone and cartilage, or silica. While many sea animals produce exoskeletons, usually only those of molluscs are normally considered to be "sea shells".Ok that is enough information about shells.
Let have a look at the top 10 beaches for shells as reported by CNN.
1. Sanibel Island, Florida
2. Ocracoke Island, North Carolina
3. Bandon, Oregon
4. Galveston, Texas
5. Tunnels Beach, Kauai, Hawaii
6. Flag Ponds Nature Park, Lusby, Maryland
7. Cumberland Island National Seashore, Georgia
8. Eleuthera Island, The Bahamas
9. Great Peconic Bay, Long Island, New York
10. Stinson Beach, California
You can the complete description...here
(Source: CNN, Wikipedia)
