Australia is blessed with coast lines so gorgeous, they warranted a mention in our national anthem. But because over 85% of us are spoilt enough to live a hop, skip and a jump from their closest beach, it's not hard to tire of our local and look further afield for something more unique. We've rounded up our favourite family-friendly beaches, lakes and rivers that are perfect for cooling off while also offering something unique to entertain the kids and ensure they fall asleep with smiles on their faces on the ride home.