Havick, the power lines across Eildon claimed 4 lives years ago, the lake is mostly surrounded by high terrain and it is a popular destination for boaters and fishermen. Trust me when I say you would need to survey the lakes in Victoria at least.
We have also already had trouble with stubborn fishermen getting in the way and there is currently no legislation that prevents them anchoring right on your best scooping zone.
Then there are obstacles like dead trees.