It's possible to respect the environment and ourselves while enjoying the world’s first national park.Credit: Daniel Ribar/Travel + LeisureKey PointsKeep a safe distance away from all wildlife, ranging from 25 to 100 yards depending on the type of animal.Drive carefully, adhering to the park's 45 miles per hour speed limit, and be vigilant for wildlife on roads.Always carry bear spray while hiking, keeping it accessible to ensure protection for …