Spend the fourth day enjoying the natural beauty and outdoor activities around Yongfu Ancient Town. Take a scenic hike or bike ride through the surrounding countryside, passing by lush green fields, picturesque villages, and serene rivers. Visit the nearby Longtan Waterfall and take a refreshing dip in its crystal-clear waters. Alternatively, you can go fishing or boating in one of the nearby lakes. End the day with a relaxing picnic amidst nature.