Turn off the water.
Turn on the faucets in each bathroom to get rid of the water in the pipes. Turn off the faucets when water no longer comes out of the spout.
Flush the toilet until you've removed all of the water from the tank and the bowl. This standing water can provide enough moisture to your home to supply food for excessive mold growth.
Remove all of the food from the refrigerator and freezer and keep it plugged in. Turning refrigerators off will only thaw the refrigerator and create puddles of water that will attract mold.
Prop open the dishwasher. This will allow it to air out properly and will keep residual moisture from attracting mold growth.
Adjust your thermostat so that the heat or air conditioning will turn on periodically while you are gone. This ventilation will move the air throughout the home and may prevent mold from settling in certain areas.
Close all of the windows but leave the interior doors open. Closing the windows will prevent moisture from the lakeside area from getting into the house. Opening the doors will encourage ventilation and air movement in the home.