Few of the most beautiful beaches on the world are on Zakynthos (Greek Island).
My favourite is Navagio Beach (one of the most photographed beaches in the world) and Gerakas Beach.

If you like to read more:
http://www.wikiscripts.net/?action=post&id=159

Zakynthos is one of the prettiest islands of the Ionian Sea – and they say it was even better before the 1953 earthquake. It is also a protected area as this is where the rare Caretta Caretta sea turtles have chosen to lay their eggs – it is obvious, thus, that its beaches are amazing, clean and sandy, with deep blue waters! If you want more info, you can check http://www.greek-islands.us/zakynthos/