Fontainebleau State Park Trail takes you through the distinctive ecosystems of Mandeville, LA. This easy 5.5-mile loop with 50 feet of elevation change showcases Louisiana's remarkable natural diversity. Trail info: 5.5 miles, 50ft elevation, Easy. Type: Loop. Surface: Dirt. Duration: 2.5 hours. Fee: $3/person. Dogs: Yes, on leash. Permit: No. Keep an eye out for deer, alligators, herons — Louisiana's wetlands and forests support exceptional biodiversity. Best times: Fall through spring; oak forest on Lake Pontchartrain shore. 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.