Just offshore from the 74 islands that make up the Whitsundays lay sections of the world's largest barrier reef. The portion of the Great Barrier Reef called Hardy Reef is perhaps the most popular spot for tourists thanks to the postcard-ready Heart Reef, which is, as you may have guessed, the shape of a heart.
Surrounded by perfect blue waters, not only has Heart Reef been formed into a perfect Valentine's shape, but it's even a romantic pink color. The incredible collection of coral was first discovered by an Air Whitsunday pilot and has since become one of the top sights for people doing flightseeing tours over the reefs. Moreover, it has become a popular, if not cliché, destination for both honeymoons and proposals. The grandeur of Heart Reef is only truly visible from the air, of course. At an area of nearly 30 meters wide and 30 more tall, at water level it simply looks like any other reef in the Whitsunday area.
To see Heart Reef you'll need to take to the air. Flightseeing tours are organized from Airlie Beach and will take you over a number of reefs and islands, plus Heart Reef.