Waubaushene Beaches Provincial Park is a 33.84 hectare nature reserve established in 1969. Ontario Parks places it beside the village of Waubaushene, 19 kilometres west of Midland on Highway 12.
The official page says the reserve contains an important sequence of historic shorelines marking the retreat of ancient Lake Algonquin. At least four post-glacial lakes left marks on the landscape as the Wisconsinan glacier retreated and drainage outlets eroded.
Waubaushene Beaches is a geology and landform reserve, not a beach-day park. Ontario Parks describes historic shorelines showing a drop of about 35 metres to the present Georgian Bay level.
The official page names several stages, including a Cedar Point Lake Stage terrace and beach, an unnamed lake stage, a Lake Payette bluff and beach, a Lake Nipissing shorecliff, beach, and offshore sand bars, plus a younger Lake Waubaushene Stage beach stretching toward the village.
The park also sits in a region of diverse forest types and other biotic communities, with pasture and abandoned agricultural lands above the Lake Nipissing bluff and cedar woodlands along a seepage zone below it.
That sequence gives the small reserve a much larger geological story.
Plan around landform interpretation, shoreline history, Lake Algonquin and Lake Nipissing context, forest community study, responsible photography, and research planning.
Ontario Parks says there are no visitor facilities and research requires an approved application. Confirm access, research rules, landform protection, maps, alerts, weather, and park guidance before travelling.
Non-operating park in Ontario Parks locator.
