It's lucky that it is anchored to the ground or it might be gone, too. There is a "three-generation tree" next to the pavilion. The original tree, an enormous juniper, was cut down, leaving only the trunk. However, other generations of trees have grown from that, thus accounting for the name.
桃蘭亭旁就有一棵三代木，這棵巨大檜木的本體已被砍伐只留樹頭，但從樹頭上又長出好幾棵檜木，因此被稱做「三代木」。