Lake D’Arbonne State Park
“Piney forests, rolling hills, five fishing piers, and a beautiful lake draw visitors to this quiet, majestic state park. Designed to keep the focus on nature, park facilities blend with the natural landscape to enhance the outdoor experience of this 655-acre park.”
Louisiana State Parks Facilities chart shows ADA walking trails and a visitor center.
Here is the Park website. Phone 318-368-2086 Map
There are 4 trails. Orange Trail is 1 mile, Green Trail is 0.5 mile, Blue Trail is 0.5 mile and the White Trail is 4 miles. The website does not say which, if not all, is ADA compliant. I suspect the others are pretty easy, but check with the visitor center.