Sylvania Waters is an affluent suburb in southern Sydney located in the state of New South Wales, Australia, 21 kilometres south of the Sydney central business district in the local government area of Sutherland Shire. It's well known for its large waterfront properties and restaurants.
Sylvania Waters surrounds Gwawley Bay on the southern side of the Georges River. Sylvania is a separate suburb to the west, and Sylvania Heights is a locality inside Sylvania. Many of the waterfront areas of Sylvania Waters were reclaimed from Gwawley Bay. Many streets and houses are built on artificial islands. The main road in Sylvania Waters, Belgrave Esplanade, essentially stretches from Tom Uglys Bridge to Captain Cook Bridge - two of the three main northern entry points for the Sutherland Shire across the Georges River.