I arrived at Shilly Shally last Sunday morning and it was as hot as a sauna - I had to dampen the stove and prop open the door to let the tiny cabin cool. This reminded me of the story about the origin of it's name.
Until 20 or 30 years ago this cabin was rented out. I recall a lovely older couple with European accents who spent weekends there and stocked the birdfeeder, when I first visited the park in the 1970's. In the 1940's Sheila Thomson's father rented the cabin for the use of Sheila and a group of girl friends. It was not in the state of repair that it is today and the girls were not very adept at getting it's old wood stove working. Their nickname for the cabin became the 'Chilly Chalet'....which morphed into another colloquialism 'Shilly Shally'. My sketch of the outside.
There is a clip of Sheilla recalling the Chilly Chalet in the Gatineau Guide website.