Marais Temps Clair Conservation Area Access provides entry to a 918-acre marsh area in north St. Charles County with 10 managed pools featuring electric pumps for water level maintenance, making it suitable for fishing and paddling. The area is open 4 a. m.

to 10 p. m. daily (24 hours for hunting, fishing, and boating where permitted), with boat access allowed on designated waters; electric motors only on waters under 70 acres.

Multiple entrance points are available, including one near Highway 94 east of Rees Road, with gravel parking areas and road trails for access.