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Luon Cave
Luon Cave is a water cave on Bo Hon Island in Ha Long Bay, Ha Long City, Quang Ninh Province, Vietnam. Part of the UNESCO World Heritage-listed Ha Long Bay, it features a low arched entrance leading through limestone karst to an enclosed brackish lake. Accessible only by small bamboo boat or kayak, it is notable for its tranquil lagoon, towering cliffs, and pristine natural scenery within the bay's core zone.