During this time of a Federal Government shutdown, National parks are also closed. Here's one on Michigan That is still accessible.
As part of the shutdown, none of our national parks are staffed and many are even closed or gated. According to the National Parks Service Facebook page,
 Some Pictured Rocks National Lakeshore areas are accessible, however access may change without notice...

 So, would you visit even when the park is "closed"? Would it be worth the risk?

BONUS VIDEO: Munising Falls - Pictured Rocks National Lakeshore