Dedicate your fourth day to shopping and finding unique souvenirs in Tianzi Fang. Browse through the boutique shops and art galleries, where you can find a wide range of handmade crafts, local artwork, and fashionable clothing. Don't forget to visit the Tianzi Fang Antique Market, where you can discover vintage treasures and collectibles. Take breaks in between shopping to enjoy delicious street food and snacks from the local vendors. In the evening, treat yourself to a relaxing spa session or a traditional Chinese massage.