This site in rural Palm Beach County covers 17,000 acres on the southern Palm Beach County border, making it the largest constructed wetland in the world. The accompanying public use area gives visitors access to vast wetland habitat where bicyclists, hikers and birdwatchers can see a variety of wildlife native to Florida. The facility features covered information kiosk, paved parking area, sidewalk path and a composting toilet. Waterfowl hunts here are managed by the Florida Fish and Wildlife Conservation Commission.

Just to the west is another recreation area (Harold A. Campbell Public Use Area). This area features covered information kiosks, paved parking areas, concrete sidewalks and a composting toilet. This is the first stormwater treatment area with a public dual-lane boat ramp, and it serves as a gateway to 23 miles of perimeter canals.

Trails are open Fridays, Saturdays, Sundays and Mondays from sunrise to sunset.

Directions

• To STA 3/4: About 14 miles north of Interstate-75, or 25 miles south of South Bay, on the west side of U.S. Hwy. 27. Look for the Palm Beach/Broward County line and large overhead power lines that cross the road and go west along the paved L-5 levee road. Look for brown recreation road signs.
• To South East Corner Public Use Facility (STA 3/4 East): Travel west about 1/2 mile turn north into site. Open for hiking and biking weekends Fridays, Saturdays, Sundays and Mondays, sunup to sundown.
• Harold A. Campbell Public Use Area: Travel west, 5 miles on asphalt turn north into Harold A. Campbell site. Open for motor boating in canals seven days a week sunup to sundown.
  Hiking and biking: open weekends Fridays, Saturdays, Sundays and Mondays.