Wild Boar Trench located in the west on the island is the specific place retains the most completed primitive plants and is the representative region of the planting group of the top digit coral reef limestone. In coral reef crag occupied by the banian tree and the banyan fig, air-roots is the unusual magnificent sight which makes one exclaim in surprise the prosperous plant life and its beauty.
In addition, it is also a wonderful spot for recreation, ocean sight-seeing, and phytoncid-breathing from the forest. The leaf falling trail provides us with the feeling as if we are walking on the natural carpet