These are the parks thicket knows about in Clay — the big ones you already know, and the pocket parks, greenways and trailheads two streets over that you probably do not.
- Barringer Slough Waterfowl Production Area
- Barringer Slough Wildlife Management Area
- Bertram Reservation
- Bob Howe - Thunder Bridge Wildlife Refuge
- Bruegmann Wildlife Area
- Burr Access
- Burr Wildlife Area
- C Earl Page Park
- D U Marsh Wildlife Management Area
- Dan Green Slough Waterfowl Production Area
- Dan Green Slough Wildlife Management Area
- De Wolf Park
- Dewey's Prairie Complex
- Dickens Pit
- Dry Mud Lake Wildlife Management Area
- DU Marsh Waterfowl Production Area
- East Leach Park
- Elk Lake Wetland Complex
- Elk Lake Wetland Complex Waterfowl Management Area
- Everly City Park
- Fairview Park
- Fen Valley Wildlife Management Area
- Gilbert James Wildlife Area
- Hawk Valley Wildlife Management Area
- High Bridge Wildlife Area
- Kindlespire Little Sioux Access
- Little Sioux Wildlife Management Area
- Lost Island Park
- Mori Prairie
- Nelson/Reng Wildlife Area
- North School Park
- Ocheyedan River Wildlife Management Area
- Oneota Little Sioux Access Park
- Reiter Wildlife Area
- River View Park
- Riverton Wildlife Area
- Round Lake State Game Management Area
- Scharnberg County Park
- Schmerse Wildlife Area
- Stolley Gravel Pit Park
- Stouffer Memorial Wildlife Refuge
- Stub Johnson Family Equestrian Area
- Sunset Park
- Thompson Wildlife Area
- Tom Tuttle Marsh Wildlife Management Area
- Trumbull Lake
- Wanata State Park
- Waterway Park
- West Leach Park
- Westview Park
- Yellowthroat Wildlife Area