Fengguei is the most remote fish village on the journey through southern Penghu, and as a result of the many changes which have taken place in the seaside cliffs as a result of the incessant incursions of the tide, natural trenches and boreholes have formed; every time the east wind adds to the tides, the tidal waters enter the trenches, and the boreholes make a sound comparable to that of an earthquake, after which spray is thrown a few meters out of the boreholes, for which they are named in Chinese.