Boating past the Ấm Islet some 20 minutes, we see Mặt Quỷ Islet or Monster Head Islet, which protrudes about 30-35 m from the waters of Bái Tử Long Bay.
Nature has carved the rock in the shape of a monster head, with a rough big nose standing out from a distorted face. From whatever angle, one still find it horrible
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