Occupying a commanding hilltop position at 1001 Upper Fort Street in Millers Point – historic Observatory Hill Park is Sydney's most breathtaking 360-degree city and harbour viewpoint. Its elevated position wraps panoramic views around every compass point: north to Sydney Harbour Bridge, Luna Park and the spires of Milsons Point; east to the Opera House sails, Farm Cove and the Royal Botanic Garden; south over the CBD skyscrapers, Town Hall and Darling Harbour; and west across Barangaroo, Pyrmont and the Anzac Bridge.

The park is famous for the heritage-listed Sydney Observatory, built in 1858 on the site of the earlier 1796 Windmill Hill and then Fort Philip, with the observatory still operating today offering daytime visits and celebrated night stargazing tours. Shaded by magnificent, ancient Moreton Bay fig trees that provide a cool leafy canopy for picnics on hot days, the lawns are a favourite spot for locals, weddings, photographers and travellers looking for a million-dollar backdrop without the crowds of the Opera House forecourt.

Outdoor fitness equipment is installed along the paved paths, and local bootcamp and yoga groups often use the lawns at sunrise and sunset. Access on foot from The Rocks through the Argyle Cut or a scenic pedestrian underpass below the Harbour Bridge approach; or a 10-minute walk from Wynyard or Circular Quay train stations. The park itself is always open 24/7.