The Ming Dynasty admiral Cheng Ho (also known as the Eunuch San Pao) is said to have camped there with his forces on their expedition to the west and to have built Sam Po Well and Po Sam temple, which are found lower down the slope.
這裡，以其地勢居高臨下，曾是古來兵家必爭之地。相傳明朝三保太監鄭和下南洋時軍隊都駐紮於此，山麓邊的寶山亭及三保井也是由他所建。