Be careful about asking to have your boat put in the water at Lake Muskoka marinas.
This is a picture of a boat at a dock at Indianhead Marina. The docks are underwater!
Since it is going to rain today and tomorrow in Muskoka, and there is a lot of water still rushing over the dam at Bracebridge, the water in Lake Muskoka is surely going to rise over the next two days, if not longer.
As the water goes up, your boat can float over the dock and when the water recedes, your boat can be left partially over the dock, potentially damaging both the dock and the bottom of your boat. Darren, at Indianhead, says it can be very difficult to get the boat off the dock at that point.
Consider delaying having your boat put into the water. If the marina advises you to delay having your boat put in the water, maybe you should listen to them!
The water in Lake Rosseau and Lake Joseph has not gone up like it has in Lake Muskoka, as Lake Muskoka receives the water from the entire watershed, which then passes out of Lake Muskoka at Bala into the Moon RIver on its way to Georgian Bay