There are several islands in Sydney Harbour, and Rodd Island is the furthest west.
It can be seen from the Bay Run and I took this on my walk this morning.
When Sarah Bernhardt was in Australia in 1891 she made many visits to this island to visit her dogs, who were quarantined there.
Not just to visit dogs, it would seem.
There's a heavy haze over Sydney, as a result of back burning and I've returned to Blackheath and a very smoky atmosphere.