We are lucky to live near two of the best and most accessible lakes in Victoria Australia, lake Bullen Merri and lake Purrumbete , these are lakes that have formed in the bottom of dormant volcanos they are deep and cold and hold good amounts of salmonoids (trout) Bullen Merri has some issues with fish kills from time to time and blue green algae also closes the lake nearly every year, to much nutrient in the water, this should be looked at and a remedied however it is in the to hard basket, that basket is quite full.
lake Purrumbete is superb and if you haven’t been there you should go, you can see quite a bit from the shore but to experience it properly a boat is needed.
The photo above is south beach lake Bullen Merri