URL of used website

https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjPoDNNpowFNAk3k0BfNTKp1R3AZZNaey8Kd6TLIVSdULJw7UrEU3o6ev5XGHN-vRZInBG503i-n-bgRIewUMJHdeVIBdkFI8vhBjU8Rx666WvdcH1y8HQoK-5tEztCd7rcBcn3eaZAcEw/s1600/LABRADOR.jpg

http://en.wikipedia.org/wiki/Seawall

http://tinglefactor.typepad.com/.a/6a0120a4f9a8ff970b01348632fedd970c-pi

http://www.georesources.co.uk/seawall.gif

https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjfSj8a_rc3PkR1n7QP1ti5Nvjabkk24tJkNd9hXCsU8FkyabrTfTNO5djWpFNe8xOKjY2wNeyaKjEghFy61cMGcOUDWKoNhvClTlouSXW9mTtPnrjpZgKTdyKqACMgnpcru5qHdUWZzqw3/s400/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb.jpg

https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhfJn46X_aZNfHT-nnvtauI1oLLQLdqYVK9vjCjes66YiCWVnqJGjfhcDRYnW4FNlv30RvaHTjD21L-ADbgsu1JrFVwzr8TCqTg3Vc1ilWKlUWSrIExLGz_gauMF3LIsjt4V3IDYXzjnGo/s320/curved+sea+wall.jpg

http://www.dnr.state.oh.us/Portals/7/pubs/fs_gifs/stfs16fig1.gif