My Watermark is Deadman Bay in Lake Ontario, Kingston.
I swim for 2 or 3 times a week from the RMC wharf to Fort Henry West Tower or CFB Kingston Marina or to Cedar Island and back. Best times are 1st thing in the morning when the lake is calm like glass and visibility is about 15 to 20 ft -- Awesome beautiful swims!
Fun times are swimming in 4-5 ft waves/swells - a nice challenge, and jostling with the sailboats. Anyways, this area is a privilege to swim and to be protected for many generations to come.