Why Discover Halong always emphasizes the term” trusted boats”? There are about 500 boats running daily on the bay but not all of them are qualified, not mentioning about service quality, their safety is a big question mark. Many day boats in Bai Chay Tourist Wharf and some low quality overnight cruises are what you need to be aware as they seriously lack of safety facilities, so you can already imagine how about their maintenance and registration.