Bradleys Head Light Tower
is (like Robertsons Point Lighthouse, built on a rock [and is
connected to the mainland by a footbridge] just off the lower
North Shore of Sydney Harbour) located in Mosman (within
walking distance [about 5 km east] of Taronga Zoo. Today’s
photo shows the Bradleys Head Light Tower with the Lady
Hopetoun steam launch approaching (it) from the north east.

More information at;
http://www.sydneyports.com.au/__data/assets/pdf_file/0010/10270/Bradleys_Head_Lighthouse.pdf
http://www.nationalparks.nsw.gov.au/things-to-do/Walking-tracks/Bradleys-Head-to-Chowder-Bay-walk
http://www.shf.org.au/explore-the-fleet/our-operational-vessels/lady-hopetoun-1902-steam-launch/