I was suprised to see this, but here are direct quotes from their website:
"For visitors looking for the more typical state park experience, the numerous finger-shaped lakes allow activities such as swimming, fishing, canoeing and scuba diving. Nearly a dozen small, isolated lakes left by the mining company were joined together by a series of dams and canals. The result is a long, narrow strand of water that runs more than a mile and a half along the eastern edge of the park, perfect for canoeing and kayaking. A sand swimming beach and change house are located on one of the eastern finger lakes and fishing holes are scattered throughout the park."
Once the site of a coal strip-mining operation, the man-made landscape of Finger Lakes State Park has been transformed into a recreational area providing a variety of amusement options. The more than 70 miles of off-road motorcycle and all-terrain vehicle trails and motocross track attract people from around the country. A one-and-a-half mile-long corridor of water, ideal for canoeing, fishing, swimming and scuba diving, features a large sand swimming beach.
S. Nagel