Opera house in background and more UV cast than you could poke a stick at. One of the features of Ozzi cloudless sky and sea is the superabundance of blue. We tend to skull around in Akubras (oz hats) shades and daub UV30+ but the combo of lens and Provia has no real UV protection, sees the blue we dont.
This lovely shot comes from a fifty megabyte .tif and the original scan is deep enough to walk into. And if you think thats good you should see the slide.
There are several of these wonderful sailing ships on the Harbour and we will add the name of this one shortly. Cruising ia a magic summer passtime. Just lucky.