Balgowlah heights

What is it? It's a 9- or 18-km coastal trek (depending on if you're going one way or returning to Manly) that takes you from sandy coves to beautiful vantage points of Sydney Harbour, up and down rocky staircases and to at least four secret beaches. 

Why go? The views are worth every drop of sweat you lose as you climb the stairs, and there are beaches here that you can only reach on this walk or by boat.