Halong Bay, UNESCO World Heritage Site, Vietnam, Indochina, Southeast Asia, Asia

travel destination travel destinations travel photography colour colour image color color image horizontal horizontal image outdoors outside day background people incidental people people in the background halong bay unesco unesco world heritage site world heritage site vietnam indochina southeast asia south east asia southeast asian south east asian asia asian scenics scenic scene scenes scenery coastal coast coastal scene coast scene hill mountain rock rock formation karst limestone water sea bay halong south china sea boat ferry transportation transport leisure tourism tourist tourists holiday maker holiday makers on holiday large group of people landmark landmarks famous well known well known high angle view high angle