At the bottom of this granite outcropping is a structure hewn out of the rock some 11 meters high, 18 meters broad and 50 meters long that can hold over a thousand men. During the hostilities it was the command center for all of the island. The sky-like roof of the structure still bears the traces of the drills used to carve it out of the granite.
在這座花崗岩山底下，高十一公尺、寬十八公尺，長五十公尺的擎天廳，可以容納千餘人，戰時為全島的指揮中心，蒼穹般的廳頂，依然可見花崗石雕鑿的痕跡。