Now that you guys mention it, the water on the east side of Georgian Bay around Tiny Township has looked more turquoise than the last couple of years. We're used to seeing that around Tobermory but it's not always the case on the other side of the bay. And if you go as far east as say Honey Harbour, where tonnes of people fish, that usually looks kind of turbid.
Haven't been paying much attention to Lake O this year even though I have been down to Oakville and Burlington waterfronts a few times. From what I can remember, it hasn't been turquoise looking there but still clear regardless.
About 8 years ago I do remember being at Scarboro Bluffs and seeing an interesting contrast in colours. That was in the fall. The cove there looked terrible. But then the following May it was pretty nice.
Though I imagine what you guys are seeing is more vibrant than in these pics: