Ingredients plant 741 different species, many trees you like boys, flower time, lim flashed, chestnut flowers, needle, white type, for an agency, the world only in the Himalayas, submerged plants 23 saltwater species, 75 species of seaweed, 199 species of phytoplankton. With high biodiversity, Cat Ba Island has been officially recognized by UNESCO as a biosphere reserve in the sessions of the World International Council on Human coordinate programs and biosphere held in Paris, on 29/10/2004. The Cat Ba Island is a UNESCO biosphere reserve is a great thing for Cat Ba is the driving force of economic development, tourism, promote aquaculture, fishing and aquaculture scientific research.