The centrepiece of the park, Sauble Falls, descends in tiers over rough and jagged dolomite, a type of limestone typical of the Niagara Escarpment. Between 320 and 360 million years old, the rock lining the river bed has been irregularly weathered, creating uneven plateaus and the cascading falls seen today.
At the base of the Bruce Peninsula, the dolomite is covered by forests and exposed sand dunes. Much of the original red and white pine and other species were harvested in the last century, and huge stumps may be seen amidst the smaller trees in the present second-growth mixed forest.
As in other sections of the peninsula, an array of delicate orchids and ferns grow here. Throughout June and July, bright orange wood lilies can be found in the dry, sandy environment of the dunes.
A red pine plantation beside the park shelters white-tailed deer, fox, and other animals. Observant birdwatchers can see many songbirds and shorebirds, especially during spring and fall migrations.
Visits to the park in the spring and fall reveal the awesome power of water rushing over the falls and the upstream struggle of chinook salmon and rainbow trout.