This is a beautiful state park that sits along the Missouri River! There is a gorgeous springs, numerous walking paths, the Lewis and Clack Interpretive Center, and tons of trail heads.
If you are looking to explore the beautiful state of Montana, Glacier National Park is a two and a half hour drive from Great Falls. Glacier is a glorious park with many hiking trails, lakes, and wild animals. If you are up for the drive, I highly suggest making the trip!