Lake Bistineau State Park Trail takes you through the distinctive ecosystems of Doyline, LA. This easy 4.0-mile loop with 100 feet of elevation change showcases Louisiana's remarkable natural diversity. Trail info: 4.0 miles, 100ft elevation, Easy. Type: Loop. Surface: Dirt. Duration: 2 hours. Fee: $3/person. Dogs: Yes, on leash. Permit: No. Keep an eye out for deer, herons, wood ducks — Louisiana's wetlands and forests support exceptional biodiversity. Best times: Fall through spring; cypress-tupelo swamp shoreline trail. Essential gear includes insect repellent, water, and waterproof footwear — Louisiana trails can be muddy year-round. Sun protection is a must. Protect Louisiana's fragile wetland ecosystems: stay on boardwalks where provided, do not disturb alligators, and pack out everything you bring in.