Duckpin bowling and arcade - great for all ages!
Indoor putt putt golf with restaurant and bar! Would recommend making reservation but can also try to just walk in!
Upscale food court with all types of food and restaurants local to Nashville! Also has a big bar and multiple live music acts!
There are a series of running/walking/biking paths around Nashville-Shelby Bottoms is great if you want to go a long-ish distance and Percy Warner Park has fun hiking/nature walks!