[2] The total park area is approximately 13.5 km2 (5.2 sq mi).

[3] The islands blend the exposed rocks and pines of the Canadian Shield with the hardwood forests found further south.

It is home to mammalian species such as white-tailed deer, moose, black bear, coyote, timber wolf, lynx, bobcat, porcupine, raccoon, beaver, red and grey fox species, chipmunk, and red squirrel.

[5] Some of the more isolated islands provide nesting areas for colonies of gulls and terns.

Wheelchair accessible sites and reserved campsites are also available at the Cedar Spring campground on Beausoleil Island.