Step 1: Centennial Park to Bronte Beach Walk (1h, 5km) - this can be done as a 'planet walk'. Start at Moore Park light rail stop.
Step 2: If you are doing a planet walk then the Sun, as you crossed the over bridge, is a ball 1200mm high (to the bottom of your chest). By the time you are level with the end of the platform you are at Mercury, which is a ballbearing (4mm)
Step 3: Level with the gap between the Horden Pavilion and the RHI (former Royal Easter Show entrance), you are at Venus (10mm) - about the end of the school zone. Level with the stone marker at the corner of Cleveland St is Earth (11mm)
Step 4: Walk south until you get to the pedestrian crossing - to the right, visible across the expanse of Anzac Parade, is the original toll house dating back from when the then Randwick Rd was a private road
Step 5: To your left is a modern gateway to celebrate the original Federation gates that stood here, from which the parade to proclaim the constitution in Centennial Park on 1 January 1901 was held. You are at Mars (6mm diam.)
Step 6: Enter Centennial Park via the 1886 gates. At the roundabout that joins to the Main Drive, you are at Jupiter (12.3 cm - about the size of a crystal ball). Cross Main Drive & wind your way through horse path to the walking track.