Located 175 kilometres north of Nakina, this Provincial Park offers low rock knolls, extensive wetlands and the rare lacustrine sands of postglacial Lake Nakina.
An esker-delta complex and other glacial landforms are among the highlighted features of this wilderness playground.
Sedgman Lake is classified as a nature reserve park which represents and protects a distinct natural habitat and landform region in the province of Ontario for the purposes of education and research. Most nature reserve parks in Ontario contain fragile natural features and therefore only a few, like Sedgman Lake, are accessible to the public.
Because of this, camping is permitted but there is no visitor gate house or facilities available.