Paris, Oct. 6 -- Routard.com, the online version of Guide du Routard, one of France's oldest and best-known travel guidebook brands, has published a feature on Vietnam's Ha Long Bay, describing it as "one of the most beautiful wonders in the world" that everyone should visit at least once in their lifetime. In an article published on October 5, the French travel website was particularly impressed by the green-clad limestone karsts rising from emerald waters, spectacular caves and floating fishing villages in Ha Long Bay. Together, they create "one of the most spectacular landscapes in Asia, if not the world". Recognised by UNESCO as a World Natural Heritage Site in 1994, Ha Long Bay is home to more than 2,000 limestone islands and islets ...