Cummins Falls was the largest waterfall in Tennessee under private ownership, but it was sold to a developer who intended to build 80 homes around it. When the economy crashed, the developer's bad luck was the conservation community's good fortune. Now the Tennessee Parks and Greenways Foundation is raising the money to pay for the property in order to turn it into a state park.
It's not a substantial hike, but it's a fun one, with a steep cliff climbed with the aid of a rope, and a hike through the creek to the falls. At least at this time of year, when water is low, you can play around the base of the falls.
Nashville Hiking Meetup has committed to buying an acre. You can read more about the campaign here.