Pelican Cave, also called Bo Nau Cave in some visitor itineraries, is a limestone cavern in the Ha Long Bay area of northern Vietnam. Stalactites, chambers and a sea approach give it the character of a compact geological stop within a wider bay cruise.
Access normally depends on an authorised boat itinerary rather than independent road travel. Confirm that the cave is included before booking from Ha Long or the wider Haiphong gateway region. Wear shoes suitable for damp steps, follow the guide, avoid touching formations and carry out all waste.