Boats on Halong Bay at sunset, UNESCO World Heritage Site, Vietnam, Indochina, Southeast Asia, Asia

travel destination photography horizontal colour image sunset outdoors scenics landscape non urban scene physical geography coastline unesco world heritage site unesco sun glowing sunlight bay vietnam vietnamese culture boat fog mountain atmospheric mood lens flare elevated view dramatic landscape sea moored cloudy sky indochina southeast asia asia halong bay colour color image color outside tourist destination travel topography scenery scenic scene scenes picturesque mist misty foggy unesco world heritage sites world heritage site world heritage sites typically vietnamese traditional culture tradition traditional traditionally vietnamese traditionally vietnamese cloud clouds cloudy sundown dusk twilight sirius collection x 2017m7 x printready