Think of the Ningaloo Reef as the Great Barrier Reef’s lesser-known, but equally enthralling cousin. The reef is World Heritage-listed and is one of the most likely places in the world where you can swim with a whale shark. Ningaloo Safari runs three different tours – two of which involve snorkelling the crystal clear waters and lunch by the pristine lagoon. There’s still plenty to be seen on dry land with dramatic gorges and canyons. You can check out the full-day itineraries here.