Introduction to the longevity stone: The longevity stone is located in the valley behind the gatehouse of the Forest Park. There is a granite boulder leaning against the mountain. The boulder is 4.2 meters long, 4 meters wide and 2 meters high. There is a deep carving on the boulder. The big "Shou" character in traditional regular script is 1.88 meters high and 1.08 meters wide. It is known as the "Shou Zi Stone".