Another option for exercise and fresh air: Riverfront Recapture parks.
The trails remain open, but the playgrounds have been fenced off. The water fountains are also closed, so bring your own water.
Paved paths are going to see more traffic than those that are just dirt, and the more distance you put between yourself and the parking lot, the fewer people you are apt to encounter.
If you go very far beyond that boathouse lot, you can peek (through a fence) at the recently acquired property. If you were wondering where the meadow of North Meadows could be found, there it is.
