Whitehaven Beach on Whitsunday Island off the Eastern coast of Australia is said to be the whitest beach in the world. The sand is made almost entirely of silica which provides the incredibly white color. The sand is so pure, NASA has used it to make special telescope lenses. Whitehaven beach stretches for over 7 km (4 miles) along the largest of the Whitsunday Islands. Trips leaving from mainland Australia to visit the beach leave multiple times a day, and there is a variety of accommodation on Whitsunday Island. Visitors shouldn’t miss a trip to the nearby outer Great Barrier Reef, one of the Seven Natural Wonders of the World.