As a waterway park, it protects the banks and waters of the Otoskwin and Attawapiskat Rivers, in Kenora District.

Permitted activities include boating, canoeing, camping, fishing, and hunting, as well as snowmobiling in the winter.

Due to its remoteness, visitors must be experienced in wilderness travel and skilled in handling whitewater.

[4] The park is within the traditional territories of the Attawapiskat, Eabametoong, Marten Falls, Mishkeegogamang, and Neskantaga First Nations.

In May 1996, the park lost about 40 hectares (99 acres) on Attawapiskat Lake that were transferred to the Neskantaga First Nation Reserve.