It is Stavros Beach, located near Chania, Crete (17 km north east of Chania). This is a beautiful place. Definitely recommend to visit if you are on holiday in Crete.
Look also if you are planning a trip to Crete.
(The beach was the location where in 1964 Michael Cacoyannis filmed the famous beach dancing scene in the movie Zorba the Greek with Anthony Quinn.)