My Watermark is Furnace Falls, Ontario.
Since I was a kid, my family and I spent Labour Day at a friends hunting camp where we barbecued, rode 4-wheelers and spent time at the local fair. There was an annual poker run that went on that weekend - about 50 bikes went through many trails and mud puddles.
We always retired to the falls to cool down, and rinse off. I used to ride down the falls in a tube, one of my danger-kid moments I must say, but it's one of my favourites. I love that waterfall.