Cant say for certain but this is what I found. Also call Dennis town hall and ask (508) 398-3568
SWAN POND OVERLOOK
Location: From Route 134, take Upper County Road to Searsville Road and then left on Center Street. The site is 1/2 mile on the right overlooking Swan Pond
Approximate length: 1 to 1 1/2 miles.
Terrain and use: The Swan Pond Overlook opened to the public in 1993 and is a wonderful site for watching waterfowl and other birds. The walking trails are designed in a butterfly shape with picnic facilities making up the "body" of the butterfly and trails fanning out as the "wings." Terrain varies, with two t rails being hilly, the rest flat. No biking or horseback riding.
Facilities: Picnic areas and benches along coastal bank; fishing.