The cottage for sale is just west of the red star, about half way between the star and Georgian Bay.
Note: Lost Channel is in the top centre of the Map, and Parry Sound is in the bottom left. For a better map of the lake, and information about the surrounding area, there is a nearby cottage (though it is not for sale) with a detailed web site at this Ontario cottage rentals web page. The cottage for sale is slightly west of the one indicated on this map.
For more maps and different levels of detail, click on the map to go to Mapquest.