Sir Winston Churchill Provincial Park is located on the traditional lands of the Cree and Chipewyan indigenous peoples.

The nuns of the mission and the children they cared for lived on Black Fox Island from April 28 to May 12, 1885, in order to stay safe during the North-West Rebellion.

Sir Winston Churchill Provincial Parks beaches are very popular during the summer and spring for sunbathing and swimming.

The smaller islands in the park host important bird colonies for double-crested cormorant, great blue heron, and Caspian tern (the only one in Central Alberta).

Other common birds in the park include great grey owl, white-throated sparrow, ruffed grouse, eastern phoebe, sanderling, blue-headed vireo, and alder flycatcher.

Mammals in the park include red fox, Canadian beaver, American black bear, muskrat, Franklin's ground squirrel, snowshoe hare, western deer mouse, least chipmunk, American red squirrel, and formerly gray wolf.