The Blue Mountain, near Collingwood, Ontario, has some of the decent skiing in Ontario. In the summer, you can have a modestly priced vacation and visit limestone caves in the Niagara Escarpment. The walk to the caves includes a stroll along the edge of the Niagara Escarpment. Here’s a bit of the view from the escarpment, overlooking Georgian Bay, an arm of Lake Huron. Where are the caves? Well, they’re below the lookout points.