Albert Park Lake.
Lake Wendouree if you feel like a drive to Ballarat (wouldn't want to fall in though

).
Lilydale Lake.
Cherry Lake in Altona.
Modewarre is about 20min past Geelong, put in at the boat ramp on the western side, dangle a line you might jag a nice trout but stay home if it's windy.
They all tend to chop up a bit if windy but not as much as the bay.