Leaf peeping is the activity of traveling to observe and enjoy the changing colors of autumn leaves. This phenomenon occurs when trees, particularly deciduous ones like maples and oaks, transition from green to vibrant shades of red, orange, and yellow. The best time for leaf peeping varies by region, typically peaking in late September to mid-October in many areas. Many people engage in leaf peeping by visiting scenic locations such as national parks, forests, and mountains. Popular destinations include the Northeast United States, where the fall foliage is especially renowned. Leaf peeping can be enjoyed through hiking, driving, or simply relaxing outdoors to appreciate the beauty of nature.