This trip just gets you a glimpse of the Bay, bit it’s a full 24 hours, sleeping on the bay in the tranquility of Nature with Sunrise and Sunset.  The typical tourist Ha Long package is just as long, but includes a hotel and a four-hour boat trip to a heavy traffic tourist island, something like James Bond Island tours in Thailand, only two days long. 

Better you take a three or four-day trip to see the Bay in greater detail, but for tight schedules or budgets, this is the best way to see the Bay.Ha Long Bay, North Vietnam - On the coast near the Chinese border.

National Geographic adventures Journal just selected Sea canoe in Halong Bay as one of the World’s top 25 adventures and it really is
http://www.nationalgeographic.com/adventure/9909/trips2000.html

SAFETY NOTICE:   Ha Long has large caves and lagoons that create dangerous tidal currents at varying but predictable times. SeaCanoe started exploring Ha Long's local conditions in 1992, and with a 16-year perfect record for safe kayaking and the only kayaks especially designed for sea cave exploring, only SeaCanoe can guarantee your safe entries into the smallest and most complex of Ha Long's sea caves.