Preview Sung Sot Cave, UNESCO World Heritage Site, Halong bay, Vietnam, Indochina, Southeast Asia, Asia Image ID: 816-1068 Artist: Michael Runkel Purchase a commercial license Buy framed prints & more from our print store color image travel photography travel destinations day indoors interiors nature natural world topography cave caves illuminated floodlit sung sot sung sot cave world heritage site halong bay ha long bay vietnam indochina southeast asia asia rocks rock formations