Come visit Toronto in the summer. Hanlan's PointBeach, part of the Toronto islands, is the city approved c/o beach. It is on the western end of the islands just south of the downtown airport.
Lots of boaters drop anchor and come ashore. Facilities include washrooms, showers, snack bar and BBQ's. The same facilities are available to boaters who choose to moor overnight on the canal part of the island.
Warning: Lake Ontario can cause severe shrinkage well into late July.