Towering cliffs, unusual green-black sand beaches, and carpets of wildflowers are among the spectacular natural features found in this provincial park, situated on the southeastern shores of Lake Nipigon. About one billion years ago, molten rock called diabase oozed up through cracks in the earth's crust. The diabase contained a dark green mineral called pyroxene. Broken down into fine granules and dispersed by the elements, much of the diabase eventually settled to the bottom of Lake Nipigon. Today, it continues to be washed ashore by wave action, forming the black sandy beaches for which the park is known. There are no visitor facilities.