One of the problems with beach erosion of coral sand beaches is the loss of live coral reefs. Orient beach is clearly a coral sand beach which has been supplied coral sand from the reef that protects it at the southern end. Over centuries the coral has been fed on by parrot fish and other fish who grind the coral into sand. As the reefs die the process ceases and so does the supply of sand. I have not snorkeled the orient reef, but the last time a did Shoal Bay East the coral had suffered immensely with heavy bleaching. USA today's Feb. 25 edition explains the process by which carbon enters the oceans and higher levels kill reefs. Just food for thought.