“Creek Crawlers,” a nature program for children ages 6 to 12, will be offered by the county Department of Parks and Recreation at 6:30 p.m. Wednesday, Aug. 11, at Clydesdale Park, Green Park and Mueller roads.

The cost of the program is $4 per child and advanced registration is required.

Children will explore Gravois Creek in search of the fish, insects and other critters that make the valley their home. A park naturalist will conduct the 90-minute program. The program is part of the Department of Parks and Recreation’s Outdoor Adventure program. For reservations, call (636) 391-3474.