On day four, venture into the wilderness surrounding Shuzheng Valley. Embark on a guided nature walk through the dense forests, home to a variety of flora and fauna. Keep an eye out for rare bird species and other wildlife that inhabit the area. Visit the nearby nature reserve and learn about the conservation efforts in place to protect the region's biodiversity. Enjoy a picnic lunch amidst nature's beauty. In the evening, return to Shuzheng Valley and relax with a soothing massage at a local spa.