The south side of the peninsula is a drumlin -- an oval-shaped hill made of sand gravel deposited by the ancient glaciers that once covered all of Ontario. Precipitation falling on the drumlin drains into a low-lying area of swamp and wetland, where a variety of vegetation and wildlife contribute to the diversity of this natural environment.

Almost 500 species of vascular plants grow in the park, including maidenhair and rattlesnake ferns. This rich wetland and forest also supports a wide range of birds and animals. Seventy-nine species of birds inhabit the area, including the yellow-throated vireo and pileated woodpecker.