Picnic sites are available on a first come, first served basis in Brushie Prairie Park and Oak Park Day Use Area. Purchase of a swim beach permit fee of $1 per person (maximum $4 per vehicle) is required to access the Oak Park Day Use Area. Children under 12 years of age will not be charged. Picnicking at sites in one of the campgrounds (Liberty Hill, Oak, Pecan Point or Wolf Creek Park) is permitted only by purchasing the applicable camping permit.