The Kankamagus Highway, which parallels the Swift River, has numberous pull offs up and down the road. We visited Rocky Gorge, located at
44.002370, -71.277572 on the Kank. A parking fee of a few dollars is demanded at these spots and can be paid with cash at the self serve kiosk there which allows you to park at all the spots along the highway.
A loop trail rounds Falls Pond, a trout pond