Here's a couple of side scan images in Google Earth taken on the Snowy River at Marlo for those interested. Kicking myself that I left my battery behind on the longer trip. You'll want a reasonable internet connection for these as they are kind of large downloads.
Summary of tracks.
Marlo (12Aug2012) – Jetty to Second Island (145 MB)
http://www.pixel-landscapes.com/Sidescan/SonarTRX-R00036-20120819-104425/doc_web.kml
Marlo (12Aug2012) – Second Island to The Slips (105 MB)
http://pixel-landscapes.com/Sidescan/SonarTRX-R00037-20120818-122620/doc_web.kml
Marlo (12Aug2012) – The Slips to beyond Marlo Jetty (101 MB)
http://www.pixel-landscapes.com/Sidescan/SonarTRX-R00037-20120819-123627/doc_web.kml
Marlo (12Aug2012) – First Island to Marlo Jetty (41 MB)
http://www.pixel-landscapes.com/Sidescan/SonarTRX-R00037-20120819-135632/doc_web.kml