ExactlyHa Long Bay was recognized by UNESCO as a World Natural Heritage twice, in 2 and 1994. Specifically:On December 17, 1994, at the 18th session held in Phuket (Thailand), the World Heritage Committee recognized Ha Long Bay as a World Heritage Site with natural heritage criteria. On December 2, 2000, Ha Long Bay was recognized as a World Heritage Site with geological criteria, at the 24th session of the World Heritage Committee held in Cairns (Australia).
