Found these listings for properties at Cogra Bay, on the Hawkesbury River.
http://www.realestate.com.au/cgi-bi...0&p=10&t=res&ty=&snf=rbs&ag=&cu=&fmt=&header=
http://www.realestate.com.au/cgi-bin/rsearch?a=pf&id=102492762&cu=&ag=HAWBRO&s=nsw&t=res
Ajax
http://www.realestate.com.au/cgi-bi...0&p=10&t=res&ty=&snf=rbs&ag=&cu=&fmt=&header=
http://www.realestate.com.au/cgi-bin/rsearch?a=pf&id=102492762&cu=&ag=HAWBRO&s=nsw&t=res
Ajax