Sailing boat in Ha-Long Bay, UNESCO World Heritage Site, Vietnam, Indochina, Southeast Asia, Asia

photography horizontal sailing boat ha long bay vietnam indochina southeast asia asia day outdoor national landmark transportation sailing boat mast rigging high angle view vacations leisure sea water rock rock formation bay nobody places of interest colour image colour color image color travel destination travel destinations travel horizon horizons no one no one high angle elevated view from above looking down landmarks transport unesco world heritage site unesco world heritage sites unesco world heritage site world heritage sites holiday holidays