How about an Australian beach?

Whitehaven Beach is a definite "must-see" in the Whitsunday Islands. The crystal clear aqua waters and pristine silica sand of Whitehaven stretch over seven kilometres (4.3mi) along Whitsunday Island , the largest of the 74 islands in the Whitsundays. It defines nature at its best.  The water and sand colors alone make this a worthwhile destination.