Ask and you shall receive...this is for Lis, who asked what it is like. The short answer is no, the other Lisa and I are nowhere near each other geographically.
First, this is what cottage country means. There are so many different areas in Ontario, and they are all uniquely different. For example, when A. and I went here, we were surrounded by Lake Muskoka. This is an area typically filled with cottages on the lake where boating/water activities and picturesque views are the main attraction. I would not say that it is a four season type of area as there is not much to do in the winter months, however it is beautiful to snow shoe, look outside while sitting next to a roaring fire or just get away from the big city life. My parents have a place in Collingwood, which is part of Southern Georgian Bay. The area is very much a four season destination as aside from the bay, there is downhill skiing and other winter attractions.
Our place is not your typical cottage. It is a townhouse unit in a larger resort-like community. It is amazing actually how much the town has grown in the past ten years. I remember when we first started coming here, it was like a deserted town. There were three restaurants (chains) and very little to do. A large corporation bought out the big ski resort mountain and since, the town has grown. Within a ten minute drive of our place, we can go to the resort to walk around, or eat or ski and feel like we are on a vacation far away. It is really awesome.
When we are here in the summer we really don't do much. We spend a lot of time just relaxing. This could be going for a bike ride or a walk, sitting by the pool or shopping/browsing at the many antique stores (the men usually golf). We eat in a lot and tend to BBQ in the nicer weather. When we do go out, we try and hit "the village" as it is a great place to hang out. There is always something going on there.
So that is it really, a short introduction to cottage country. If you are ever in the area, let me know, I would love to give you the proper tour!